I wasn’t even aware that this was an issue, but apparently it is. From Amazon’s page for Hasbro’s Thor Lightning Hammer:
Product Features
• Carry the hammer of Thor, the Mighty Avenger! Modeled after the hero’s weapon in the Thor movie. With thunder sounds, flashing lights, and launching missile. Keep Loki out of your room!
• Inspired by the Thor movie, this amazing Thor Electronic Hammer will give you the powers of Thor! (Or a reasonable plastic facsimile thereof.)
• Featuring a launching missile, as well as electronic lights and sounds, this nifty mock weapon is the best way to keep Loki out of your room.

What I want to know is why is he an adult again and why is he wearing Dr. Strange’s Cloak of Levitation?
Looks like he’s got the Eye of Agamotto, too…
But I want Loki in my room!
I want to know why Henriksen is checking Amazon for Thor’s Hammer. Going to the screening in costume, eh?
Asgard’s Registered Sex Offender Database *still* isn’t accessible from computers on Midgard! (Especially if they’re running Firefox.)
I love how if you look at the product page on Amazon, there are actually two hammers available. There’s the “basic” and “lightning” versions. I feel sorry for the kid that gets the basic with a group of friends have the lightning.