Cartman Costume Diy . Being great south park fans, my teenage sons had asked me to design halloween costumes for them including kenny, kyle, cartman, and stan. Is a community where cosplayers of all ages, and talent levels. homemade cartman cosplay halloween costume diy paper mache Diy from www.pinterest.com (3) blue baby adult costume. This diy costume was made to look as much like the cartoon version as possible and it looks so close that it’s basically the real life version of the little crime stopping vigilante. 4.6 out of 5 stars.