Domo Arigato, Mr. Monstero

There are several questions to consider when choosing a monster to stick on your head:
1) Will this monster affect my mental abilities in any way? Creatures such as the brain slugs from Futurama may be cute but have the unfortunate side effect of diminished host capacity.
2) How comfortable will my head be with said monster attached? After a few minutes with the Half Life headcrab's beak in your frontal lobe, you, too, will be moaning "Help me."
3) Will putting this monster on my head encourage my enemies to cower in terror before me? Okay, so this is where our buddy Domo-kun sorta comes up short. You can let out a fearsome roar with this hat on, but the most likely response you'll elicit is a giggle.

This hat is 100% polyester, made from a poly fleece fabric, which is warm but lightweight and water-resistant. One size fits most aspiring monsters.