All you have to do is come up with the most random way for SnK characters to hang out or something and I WILL draw it!
Christa with crazy mad-kid face painting dicks on sleaping Eren's forehead with devilish Ymir the Satan petting her saying "That's my girl...>:'D"
or, I don't know...Sasha and Connie on the Wall Rose making fun of the titans with lines like:HAHA! What ya' gonna do now, HUH? No snack for you today!" "Suck my dick!...OH, wait! You can't! Because you're DOWN THERE! "
I don't know, let your imaginary do whatever it wants with your brain XD