Feb meeting ideas for Juniors that will be FUN

We've been doing a lot of badge work and community service preparation in our troop, and I'd love to do something that's more fun for the February meeting. We have a little bit more work to do, but it won't take up the whole meeting - we have 30-45 minutes to fill. It would be great to do something more structured than just a Valentine's party. It's also in a library meeting room so we can't be messy.

Anyone have really fun suggestions? Bonus points of it can start earning them a badge or fun patch.