Have any fun personal projects?

Anyone here have any projects they work on for fun? Whether it be a long-lasting project or something you thought up one morning and knocked out in a few hours.

Curious to see what others are up to.

5 year project in the works. Low revenue but personal attachment.
1 year project in the works. High revenue, business workplace site.

only thing personal I am working on is a redesign of my business site, the rest of the time I am either doing web or graphic design for clients