day 1: an oc / ocs in casual clothes
day 2: an oc you draw a lot
day 3: an oc you need to draw more of
day 4: your first oc / an older oc
day 5: what's your oc's favorite season? draw them in fashion appropriate for it
day 6: social media - draw / edit what their instagram / twitter would look like
day 7: reference sheet - create one for an oc or update a ref for an oc
day 8: texting group or discord server - what would it look like?
day 9: make an aesthetic board for an oc of your choice
day 10: coffeeshop - either coffeeshop au or what your ocs would like from a cafe / bakery
day 11: board games - how would a game of monopoly go?
day 12: room - what does your oc's room look like?
day 13: animals - what would your oc keep for a pet?
day 14: music - do your ocs play instruments? what kind of music do they like
day 15: relationships - do you ship your ocs? either platonic or romantic
day 16: RPG - how would a screenshot look from a RPG starring your ocs?
day 17: neon - draw your oc in a nighttime cityscape
day 18: retro - draw your oc in either retro clothing or a pixelly style
day 19: lineless - challenge time, you can't use lineart in this one
day 20: limited palette - use a limited color palette (from here or another site)
day 21: spyfi - would your oc prefer it shaken, not stirred?
day 22: dungeons and dragons races / classes
day 23: masquerade ball - a decadent fancy party for your ocs
day 24: fairy tale - draw your ocs as the main characters in one. has it changed?
day 25: haunted - what's the saddest event in an oc's life?
day 26: nostalgia - what's their fondest memory?
day 27: haunted (electric boogaloo) - do your ocs believe in ghosts?
day 28: witchy - draw a witchsona, or imagine an oc as a witch
day 29: vampires or werewolves - what team are you on?
day 30: candy - what's your take on candy corn? what candy does your oc like?
day 31: costumes / cosplay - how would the trick or treating / costume party go?