Einstein Costume

My son is 19 months old and has crazy curly hair. We've always said he looks like a mad scientist, so immediately I thought of Einstein. We knew he wouldn't keep a wig on, so we decided to spay his hair white. ($3.99 for white hair spray) We purchased a white mustache ($1.99) and a black casual suit coat. ($6.00 from once upon a child) The rest of his clothes we already had. (Pants, shoes, shirt and tie) I also made an index card showing einstein's equation (E=mc2)