The urban internet legend is coming for us. We've seen the drawings and they're getting more and more sinister. He's coming. Slenderman took over as the head Internet monster a few months ago and he's not showing signs of being topped. The Slenderman is still at large and we think that Slenderman costumes are some of the best, especially for kids. Our Kids Slenderman Morphsuit is a brilliantly easy costume, comfortable to wear and creepy as hell, perfect for Halloween, or just randomly creeping out people on a walk in the forest. See below for our whole range of kids Slenderman costumes.