Curious George Diy Costume . Curious george costume step 1: Curious george + the man with the yellow hat before i share my kids costumes for this year (and a few other fun diy adult costumes!), i’m dipping back into. The Man with the Yellow Hat Curious Costume Boys halloween from www.pinterest.com Step 1) cut chicken wire out in a 3.5' x 3.5' section which should be about 3x. In the dream world, george and hundley have the best costumes! Materials and molding the head.