For anyone who likes girls/women with their hair bunched up and placed on top of their heads. Whether the characters you draw have their hair updone canonically, or whether they themselves are even canon, provided you follow the following rules, welcome to the club!
1) At least one character in each pic must have their hair mounted atop their head (even if some of it resides elsewhere). Simple as that.
2) NO NICKTOON CHARACTERS!!!!! That's right! Due to a personal bias, I am not going to accept pics of Didi Pickles or Gerald Johansen, even though they both canonically sport blatant examples of this trope. Userpics are also subject to this rule. Please keep in mind that these shows cover only a small minority of all western cartoons. (Not making a list either; you should easily be able to find one on Google.)
Thank you and enjoy yourself!