I'm sorry, I thought I replied when you made this comment!

We'd use kink_bingo, but it seems like there's a long time between rounds, which makes it difficult to sign up for a card. (origfic_bingo, on the other hand, is included because there are card request posts each month.)

Is there a way to get a random image on Tumblr, or would we need to find a picture each day and post it somewhere?