a Helmet of Confusion spell
on Billy the Kid's COWBOY hat?
The Big Bang Theory Season 5, Episode 10
♪ I'm a COWBOY ♪
The Big Bang Theory Season 5, Episode 18
We're not wearing
COWBOY hats, Sheldon.
The Big Bang Theory Season 5, Episode 10
I can't believe
you bought a red COWBOY hat.
The Big Bang Theory Season 3, Episode 1
That man was clearly a COWBOY...
The Big Bang Theory Season 6, Episode 21