While these may look like something a very bored fan would come up with in their spare time, they are real. Made by Reebok, and officially-licensed.
No release info or pricing yet, but they’ll surely be limited and fairly expensive.
I…kinda want a pair. Not to wear out. Just to wear around the house, running around making whooshing and “pew pew” noises while I kick things pretending they’re evil spaceships
http://www.highsnobiety.com/2014/05/11/reebok-instapump-fury-x-gundam-m40168/