Want to add further personality to your mouse? I created this, a printed scroll wheel for Wireless Mouse Kit MH002. 

Just kidding. I actually designed it because somehow my mouse wheel broke, and I had to design one. After about 5 hours of printing, and 5 prototypes I was happy with the results.

(Unfortunately?) you will have to switch to a 0.2mm nozzle. I tried 0.4 and it will NOT work, the hex shaft is way too small.