For the littler guys the Thor Muscle Toddler Costume is in stock (as of this writing), and features a jumpsuit with blue bottoms, printed orange belt, and a black top with muscle chest and arms. The costume also includes a blue headpiece with attached wings to top off your Thor look! It does not include socks or hammer.
There’s also a Thor Movie Child Costume (above) coming soon. It’s not in stock yet, but it looks like it should be here by the end of July. The costume includes muscle-bound jumpsuit, detachable cape and character headpiece. It does not include the socks or hammer (sold separately).
For girls there’s the Thor Sif Costume, because every mighty warrior needs a girl to back him up, right? This costume’s also coming soon (ETA 7/29)! The costume includes a shimmering tunic and matching leggings.