A member of The Dented Helmet forum made his 6-year-old son a Boba Fett LEGO minifig costume! He says,
I recently (semi) completed a Lego Boba Fett (Lego set 9496 - Desert Skiff) costume for my 6 year old son. We took the costume for a trial run at a local toycon this past Sunday. I still have to finish building the arms and blaster, as well as tweaking a few things such as the cape fabric. I approached the components of this project as if they were actual Lego elements. In doing so, I created the jetpack to be removable as it appears in the actual minifigure as well as the range finder stalk. The entire costume is built from scratch using photo references and scans I took myself. The costume is built primarily out of sintra with pink insulation foam used to carve the helmet dome and a small amount of plastazote foam used on the tips and base of the jetpack rockets. Torso and leg graphics are printed on adhesive vinyl while a custom green was used to colour match the helmet and jetpack. I would be happy to post progress photos of the build if anyone is interested in seeing the journey. Oh!, and there may soon be a certain someone, frozen in a certain something being pushed around by Lego Fett ; )
You can see plenty of pictures, including many taken during the build process at the forum thread. -via Laughing Squid