This custom made "Blot" Transformers costume is one of the best and most insanely detailed Transformers costumes that I've seen. It was created by YouTuber derepentignymarc, and as you'll see in these photos and video, the thing turned out ridiculously cool! The only thing is doesn't do is actually transform. The eyes and mouth parts move though; the mask slides up and down automatically, and it has some light and smoke effects. Oh -- and the arms can be moved via remote control.