I respectfully request a pirate hat, complete with plume. It's up to you if you want to add special effects while wearing it on the space pirate level.
I already have an abe lincoln hat, and I'll implement a paper hat, a pirate hat, and a ninja mask tomorrow.
Some of the hats might have special effects. I might put an old fashion pilot headwear that grants Blocky Man super speed all the time. Also, a viking hat that gives +1 max health.
Another good idea is one of those hats with the ears, like a detective hat