I used to dress Frisk up as Osama, but that was years ago, I wasn't exactly normal back then!
I could easily dress Frisk up if I wanted to, but... I don't want to.
And Ethan, He has a dog jacket for when its really cold (since he's a sensitive little sucker ), but it usually doesn't get that bad here.... I haven't tried dressing Ethan in any human clothes... I'm going to go try^^!