I'm working on many things simultaneously and believe me, it is work. Fun work, but still.
I put some of my fun designs in a shop on Threadless. I haven't purchased any myself (yeah it's weird that you have to buy your own stuff but I get a shop owner discount so there's that) so I have no idea what they actually look like in person but I love the company, and have multiple t-shirts from Threadless so I'm fairly certain they're cool.
Here's what I've got up there now, click through to see other styles of shirt: