-Light: candles, lamp light, warmth
-Family, friends and home: hearth (literally, as in the physical fireplace or stove only), houses, beds, laughter, comradery, wedding rings, fabric, needles and cloth, blankets, spinning wheel, covenants or agreements, names and naming ceremonies (or other coming-of-age rituals)
-Food and drink: feasts, tables, beer, salt, cups, pies and cakes, mills (water or wind)
-Specific domestic animals or crops or byproducts: goats, horses, turnips, cheese
-Protection: locks, strongboxes, doors, fences, inns, manacles (for law enforcement), shields
-Healing: midwives, bandages, surgeons
-Peace: calm, silence, fellowship, agreements, comfort, encouragement, satisfaction or satiety
-Learning: paper, ink, memory, lenses (as in magnifying glass or telescope)
-Travel: wheel, sails, gears and pulleys, tack (saddle, bridle, maybe spurs?), guideposts or maps
Some good ones here!
A god or goddess of candles or lanterns could double as a psychopomp / guide for the dead, who holds the darkness at bay. At their shrines, people would light candles in remembrance of loved ones on the anniversary of their deaths (or there could just be one big festival of the dead once a year, and everyone comes out with lit candles and does a big procession out to the graveyard, and leaves burning candles on all of the gravestones while they mill around and 'remember' the dead (generally by drinking and partying, after some swapping of stories of famous ancestors and the like, while placing the candles) and the usual after-party sex...
A god of 'shields' could double and triple time as a god of fortifications and the patron god of abjuration magic. Green Ronin's Plot & Poison has a drow demigod of abjuration magic who could serve as inspiration. The 'favored weapon' of this god is a spiked shield. The god's own features are indistinct, as he is clouded by many abjuration spells, and even under the spells, he's fully armored, with a heavy shield in one hand and a free hand for warding incantations (or to snatch arrows or exercise other defensive abilities) and his (or her?) true features remain a mystery. His clergy would be the 'Freemasons' of the society, keeping secrets of building fortifications, as much as possible, to maintain their monopoly on keep construction. They might even have a few unique spells that they never cast in the sight of the uninitiated, long-lasting alarm and arcane lock type spells, for instance (or perhaps they simply pretend to do so, and use their training to get a 5% or 10% cost reduction on making those sorts of spells permanant, and then sell them at a cheaper cost, to make it seem that they are using magic unavailable to wizards who can't afford to provide these services at their cheap, cheap rates, undercutting rivals). The Drow version was totally paranoid, and even a good version of such a diety could be a tad over-prepared...
A hearth and home goddess, similar to the Greek / Roman Hestia, could have both Protection and Fire as her domains (perhaps Community and Healing as well), and while her 'altar' is the family hearth in every home, she's also associated with the protection of the walls of a home (and her clergy claim that it is her special blessing that makes it hard for vampires to enter a home uninvited!), and the power of flame to not only warm the family and cook the meals, but also to hold back the night terrors.
One of the Central/South American peoples had a specific goddess of corn (Centeotl, IIRC), although I don't remember if she was Mayan, Incan, Aztec, Toltec or some other group. A god of milk, butter, dairy in general, perhaps one with a cows head, could be an option. She might also be a goddess of leatherworking, and the clergy would practice animal husbandry and provide butchery services (not something you'd expect at a non-evil temple!) as well as counseling the use of the entire animal, with the inedible parts used dog or chicken feed, the bones carved into tools, or crafted into scrimshaw and used as temple decorations, etc.
A god of goats could be a fey / satyr god as well, and have (non-malicious) trickery as a domain.
A god of beer seems like a must for a medieval community, as, in some cases, the local beer and ale was a heck of a lot safer to drink than the local water! The god would have an association with the various crops grown to make beer, such as wheat or hops or barley.
A region that makes a living off of grapes grown for a winery (and jams and such made from the grapes that aren't deemed 'good enough' for wine-making) might have a harvest-god who is associated with wine, the local lands, grapevines, etc. and be thought to exist in part in every bit of vine that grows in the region, explaining the high quality of the local vintages. His clergy might have their own 'secret techniques' for wine-making, such as plant growth spells (from the Plant domain) that allow them to force an extra crop every season, or a variation on purify/putrefy food & drink that fast-ferments their vintages, allowing them to put '10 year aged wine' to market that they bottled only this season...
Similarly, a bee goddess might be revered by a northern community reknowned for it's honey-mead, and for 15-20 gp over the usual holy water price, a local can purchase consecrated honey, that 'sticks' like alchemical fire and does additional damage on a second round to anything that would have been affected by holy water.
The god of reflections, associated with vanity by some, also loathes the undead and is said to refuse to show the reflections of vampires, and his clergy know spells to cause a silvered mirror or mirrored glass to reflect only the truth, showing shapeshifters in their true (or monstrous) forms, to protect against deceivers. A different spell would allow one to gaze deeply upon oneself with a mirror, and receive a sort of Omen / Augury effect, seeing one's own flaws and faults exposed visually, in the hopes that one will then correct these faults, once they are seen. As such, he is not just a god of shallow surface beauty, but one of inner beauty and self-perfection. At the temple of the god of reflections, either in the reflecting pool in the contemplation garden, or in the many silvered looking glasses tucked away in alcoves in the main temple, one sees idealized or more youthful or unscarred reflections of oneself, which leaves many followers who are no longer quite so youthful or unscarred feeling heartened and un-self-conscious for a time. (Beer goggles for the soul!)
