yourATCstore Everything Pink Artist Trading Card Collage Sheet #1. This pastel pink themed collage sheet has many different sized images to fit perfectly on your ATCs. These adorable pink photos will also work with your altered art, greeting cards and other collage projects. This matte finish collage sheet is professionally printed and comes in a crystal clear bag for protection. Sheet measures 8 1/2 in. X 11 in. and are Acid Free.