My finished Zaku Mobile Suit. Took one month to build from scratch. Materials made of craft foam, painted with beige elastomeric paint base and regular latex thalo green mixed with beige then overall sprayed a thin surface layer with spray paint Black Board green.
The gun was a solid 2 inch sheet of scrap styrofoam.
Wore it at Cosplay Mania X in SMX convention center in Pasay City, Manila, Philippines.