This Flight of the Conchords icon contains
filzhut, homburg, stetson, trilby, fedora, and stetson trilby.
There might also be
boater, leghorn, panama, panamahut, seemann, skimmer, hut stroh, bootsfahrer, bein, strohhut, livorno, panama-hut, porkpie, porkpie hut, kampagne hut, and kampagnenhut.