These Letter R costumes are just what you need if you have been invited to a party with a R theme. Use this section to find your own fancy dress starting with the letter R. Costumes starting with the letter R range from Robocop to referee to Robots. Visit Grandma in one of our many Red Riding Hood costumes which come in a wide variety of designs and sizes. Maybe you want to be a valiant hero for the evening as Robin Hood or how about a Reindeer? Let us spoil you for choice with this collection of Letter R costumes.