Maybe a long shot, but why not ask.

Doing a Secret Santa gift exchange at work, and I drew a coworker who likes to bike to work like me. Anything fun or cool for 10-15 bucks? New bell? Blinkie light? Gadgets? Bags? Basically, what's the coolest cheap thing you ever bought for your bike (or wanted to)? I was thinking about a globe/ball style compass that can be mounted to handlebars. Some cheap ones on eBay, but they look cheap too! Know what I mean?