Here's something for you to chew on -- a high level PC from a few games back.
This character was a light armor wearing, giant sword wielding warrior who dabbled in magic and, due to his prestige class, had managed to gain many draconic traits including breath weapons and frightful presence.
So far, easy enough, but he also used numerous draconic grafts to enhance his combat abilities -- gaining a tail to slam his enemies, claws on one arm, and scales grafted onto his skin to cover various vulnerable areas.
The end result was a human gish who was more beast than man. His oddness was always forefront, even before utility or effectiveness.
He would buff himself and then wade into battle with his sword, swatting with his tail as a secondary attack, trusting in his light armor, scales and various resistances (all from the PrC) to protect himself.
In 3.5 terms, this character was a fighter 3/sorcerer 3/talon of tiamat 9 (don't ask me where the PrC came from, I don't recall) who made extensive use of the grafting rules that appeared in the later 3.5 edition splatbooks.
Mainly curious how you'd work the grafts -- just refluffed magic items, or something else?