It's going to be my first Inksgiving as well! I'm most likely going to do something similar and offer to do sketches of people's OCs for some amount of ink. Not sure the exact amount yet, but keeping it as quick sketches should help keep it from being too overwhelming, haha.
I'm also thinking of doing silly stuff like "I will draw my characters in silly outfits if I get x amount of ink," I'm just trying to figure out if that's a good incentive and/or what sort of outfits I could do, haha.
And for anyone interested: