8 Best Ostrich costumes ideas ostrich costumes, costumes, ostrich Unisex Step in Ostrich Costume for Animal Bird EMU Fancy Dress Outfit Riding Ostrich Costume Ostrich Costume Diy. Description : Fantastic for stag do's and fancy dress parties. Each costume features a costume that you step in to so that your legs look like the back legs an emu ostrich. The top of the costume covers your top half and you hold the head in your hands so it looks like you are riding it. Features : All in one step in costumes Braces to support the costume Size Guide : One size fits all