Well, in my current campaign I'm working on, I have the following:
Dark Elves are the most common type of Elf encountered. Many years ago, the Light Elves and their cousins declared war upon the Dark Elves...and lost. While the rest of their race has retreated to hidden places far from civilization, the Dark Elves have prospered, and are accepted in large towns and cities, and are noteworthy for their exotic beauty. However, they do experience some suspicion in smaller settlements, especially in the frontier lands. Encountered Dark Elves have lived on the surface long enough to lose their ability to see in darkness, though their natural powers of stealth have increased to compensate.
Effectively, they are Drow that now live on the surface and integrated into civilization.
Dusk Elves are descendants of Elven prisoners the Dark Elves took as slaves. They all have Dark Elf blood, but are generally smaller in size than pure blood Dark Elves. They often have characteristics that are throwbacks to their Elven ancestors, such as lighter skin, or hair and eye colors not commonly found among the Dark Elves. While no longer slaves, they are often lower-class citizens compared to Dark Elves.
Smallkin (sometimes referred to in ancient texts as Lilka) are related to both Elves and Humans, suggesting a common ancestry to both races. While Humans and Elves cannot interbreed, they can have children with Smallkin (though the resulting children, while sharing some physical traits with their Human or Elven parent, are also Smallkin). The Smallkin remained neutral during the Elven Wars, and interactions between them and Dark Elves are polite, if reserved.
As their name suggests, Smallkin are about a foot and a half shorter on average than Humans, with slender builds and youthful features. Male Smallkin often sport mustaches and short beards to be taken a little more seriously. Smallkin have latent psionic abilities, which have helped them survive all manner of adversity, as well as a secret tradition of martial arts known as Vetchkunst, which is based around leaving the hands free for defense and attacking with powerful kicks, using tough-soled, reinforced shoes known as strijdclogs.
Dwarves are well known for their affinity to earth and stone, and their love of crafting and the treasures of the earth. What few realize is that they are actually Giantkin, though they lost their height due to an ancient curse. Dwarves have solid bodies with short legs and low centers of gravity. Though about a foot shorter on average than a Human, they are actually a little heavier than the average Human (so female Dwarf would have an average height of about 4' 4”, but might weigh 130-140 lbs.). The ancestral Dwarves possessed the power to increase their density, but it has all but faded. Dwarves can, however, increase their size if need be, though since this power doesn't generally affect their possessions, Dwarves favor tough, loose clothing. Conservative male Dwarves take great pride in their beards, but most young Dwarves favor shorter beards and shun mustaches.
Kentaurides are believed to be descended from Humans and Fey long ago. They possess the ability to transform into a creature that combines the strengths of Humans and Horses. While there were once males of this race, the Centaurs, all Kentaurides are female. They can mate with Humans and even, in theory, Smallkin, but such births are rare. They can also, however, reproduce via parthenogenesis, that is, producing offspring without a mate, though usually only once about every seven years, and even then, only if they have others who can help take on a parental roll to the child. The children of Kentaurides are always Kentaurides. If the female is a sole parent, her child will look identical to her. Kentaurides are all about the height of a Human Male, though Kentaurides with Smallkin ancestry might be a little smaller and lighter.
As shapechangers, Kentaurides tend to wear very little, as their transformation tends to destroy or damage most clothing worn below the waist. When the transformation is enacted, their bodies from the waist down take the appearance of small horses (with the waist extending from what would be the withers of a horse) or ponies. Their equine legs are short and stocky, and their hooves are shaped differently than a true horses, giving them a more human-like range of motion, and allowing them to simulate being able to rise to the balls of their feet. Their thick hooves do not require horseshoes (though some Kentaurides will wear magical horseshoes). Kentaurides do not often accept riders (who would have to be child-sized regardless), as this is analogous to intimate contact.
Sprites are a small race of Fey. They are very small in size, typically ranging from 8” to 1” in height, slender and graceful. They have hair in a variety of pastel shades, and wings similar to those of a dragonfly, butterfly, or moth. Though native to secluded forests and meadows, they are very inquisitive, and occasionally suffer from bouts of wanderlust, taking them far from their homelands.
Sprites have no gender, but can vary their appearance to appear more masculine or feminine, though they cannot grow facial or body hair. Their voices are childlike and they can be much louder than their diminutive size would indicate. Sprites do not normally wear clothing, but ones found in civilized areas are often fascinated by the concept, and will acquire lavish wardrobes for themselves- provided they can figure out where to keep their possessions!
Sprites apparently reproduce via parthenogenesis, like Kentaurides, but they do so very rarely when away from their homelands, and they tend to be very reticent about the details.
Mosura are humanoid race with some insect-like features, namely, large, moth-like wings and antennae. They are divided into two castes, based on gender, though outside of their native lands, males and females can assume whatever roles they desire. Mosura are very tall, with an average height 1 foot taller than humans, but their bodies are slender, and weigh half as much as one would expect. Female Mosura have a sort of ethereal beauty, and are traditionally the leaders and priestesses of their culture.
Male Mosura (also called “Batora”) are the soldiers and hunters of their people, and have physical adaptations suited to such roles.
While not Immortal, like Sprites, Mosura spiritual beliefs say that life is temporary, and upon death, your spirit is reborn in a new body. Though never seen outside their homelands, Mosura Queens are gigantic in size, and lay many eggs, each of which hatches when it receives a wayward soul. New souls are granted to the Mosura by their Gods rarely, keeping their population limited. While theoretically Mosura can live as long as humans, though it is rare to see an old member of this race. Mosura Queens, however, are said to live for centuries.
Drakelings are a small, reptilian race who claim descent from Dragons. They are a foot shorter on average than humans, and their skin is covered in scutes, and their coloration tends towards earth tones. Their eyes are large and amber, with slit pupils. Drakelings are a recent addition to civilized lands, having moved from their homelands after being driven out by dangerous monsters.
My last campaign was even crazier, with Galateans, humanoids descended from Mimics; Striga, who are wild elves with owl like wings; Winterborn, humans who made a pact with Winter Wolves; Wisplings, Halflings who were possessed by Will O' Wisps through a strange, arcane ritual, becoming a blending of both creatures; and the Zur'ahn, an advanced Lizardfolk culture that came to the world long ago from space!!!!!
