I see plenty of hats in this thread... If you'd like to make your hats look better by removing its background in less than one minute:
from this:
to that: 
check my short tutorial: [TUTORIAL] Less than one minute to make your hat (or other avatar) look better!!
And YES - I've already heard that my hat looks like the shit and only Homer can make hats...
I did not even dare use his work in the tutorial thats why I used this shitty one ;-)