Wig from ebay styled by me. When a whole can of hair spray wasn't cutting it I ended up using Elmer's glue at the spike tips to keep them together. The headband I made myself and is stitched directly onto the wig so it would stay in place.
I made my own muscle suit to wear under this out of spandex and quilting stuffing.
The jacket I patterned and made from scratch. For the neck, waist and wrist band parts, I bought a white ribbed sweater at a thrift store. Then dyed it yellow with Rit dye. Sewed those onto the jacket then drew the stripes on with black Sharpie marker.
The pants I just bought from JCPennys.
The shoes are from Ross. I colored over the sides with black ink. I added stuffing on the top front parts to get more of that cartoony shape and then covered it in yellow fabric. The black triangles are just drawn on with Sharpie again.