Created by splicing robots with frog DNA, the 100% cotton Transformers 4 Grimlock on Grey Kids T-Shirt wants to treat Sam Neill and Samuel Jackson to a wonderful weekend vacation filled with plenty of excitement and adventure! Wait, no. That isn't right. The Transformers 4 Grimlock on Grey Kids T-Shirt is actually based on the leader of the Dinobots who often start off as chompy-chompy and end up friendy-friendy. Who would have thought that giant robotic dinosaurs would be understood?