Gen 1 Optimus Prime Costume

Home made generation 1 optimus being worn by my 3yr old son. Many people tried to make this costume but failed on accuracy and proportion. Many tried to use tball helmets and hard hats , but to keep proportion I used all cardboard and foam. Priming kept paint cost at $6 foam and glue sticks ran about $9 for a total cost of $15. Est. 24-30 hours of cutting, gluing, and painting. I used free keychain lights from a trade show but usually available for $1 ea. I used only pictures for reference and detoured from others instructable. He loves it and it gathers a crowd quickly. Enjoy