Here are some ideas for accessories or details in your character's appearance.

Ability Aids
Prosthetics: legs, tails, wings, horns, talons, claws
Other: glasses, monocle, cane, other mobility aids

Clothing
Types: bag, pouches, hats, mini hats, crowns, flower crowns, capes, leg warmers, tail warmers, scarves, ear warmers, cloaks, headbands, armor, helmets, lanyards, wrap, handkerchiefs, collars, chokers, shawls, jackets, patches, pins, ties, bows, bow ties, masks, headpieces, corsage, backpack, messenger bag

Items
Types: notebooks, wands, umbrella, hand fans, lantern
Weapons: knives, swords, katanas, bow and arrow, pitchforks, scythes, nunchucks, ball and chain, blow darts

Jewelry
Types: necklaces, bracelets/anklets, watch, rings, tail bands, horn ornaments, crowns, clips, wreath, tiara, charm bracelet, brooch
Materials: feathers, flowers, diamonds, jewels, pearls, opals, silver, gold, etc.

Piercings
Locations: ears, nose/snout, wings, mouth/lips, scales, tail, frill (RainWings) ridge (SandWings) webs (SeaWings) fin thingy (LeafWings and SeaWings) tail leaf (LeafWings)
Types: rings, studs, barbells, hoops, dangling

Tattoos
Common designs: Animals, flowers, other plants, patterns, skulls, other bones, dragons, portraits
Types: traditional, neo traditional, new school, realism, tribal, watercolor, black work, Japanese, illustrative
Common locations: wings, face, shoulders, legs, talons, tail

Other details
Missing, broken, or extra body parts: eyes, talons, claws, wings, tail, legs, horns, teeth
Body mods: tattoos, piercings, stretched ears, implants, split tongue, pointed ears/wings etc.
Other: freckles, scars, face or body paint, goggles, sunglasses

More will be added later!