So two days ago I had the sudden urge to make a hat.

Although it's a little less 'making' and a little more 'converting.' I bought a $9 cap that was plain-black and had that strap in the front, then glued a round piece of fabric on. I stuffed it with a molded piece of foam to get a poofy, mushroom shape. Finally, I added that pin to hold the foam off to one side and add a little more personality.

It's a little hard to see from this angle, but it's about as poofy as you can get without looking entirely ridiculous X3