Make that “many things.”
This hat was featured by Twitter user Ananth, with a pretty good explanation of why it looks like this:
https://twitter.com/embed/status/818156611256590336
The replies have picked out a number of weird things going on here:
Insert your head D I R E C T L Y I N T O A M E R I C A ' S A S S
— Kendra (@kendrawcandraw) January 8, 2017
https://twitter.com/embed/status/818157074043600898
IS YOUR FACE HIS TORSO AND CROTCH
— anne e (@spinooti) January 8, 2017
Unfortunately, this thread does not cover that the arms are operated by squeezing the legs. Anyway, here’s another amazing photo of the hat, courtesy of the manufacturers:
Less a majestic “when Captain America throws his mighty shield!” moment than a confused “when Captain America waves his mighty shield” one.