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.