Here’s a real lazy days passive program for you: artist trading cards. We’ve done this program both as a scheduled program and as a passive program before, and it’s pretty durn easy.
The first thing you need to do is make or procure some blank cards. You have a lot of options for this! You can pick up a pack of blank business cards, purchase a pack of blank playing cards, or even just cut up some cardstock into playing card-sized rectangles. This particular program was inspired by my scrounging around in our passive program supplies and turning up a couple of packs of Scratch-art trading cards we bought for a scratch art program almost a year ago. I whipped up a quick sign, put out two little containers (one for new cards and one for arted-up cards, and BOOM.
If you haven’t heard of artist trading cards, I’ll be a bad librarian and point you over to Wikipedia for the history of the medium. Essentially, they’re a cool way to share art and challenge yourself to make your art on a tiny scale.