Vintage Transformers 2 piece Twin Flat Sheet + 1 Pillowcase Dark of the Moon.  This is a vintage set (1 flat + 1 pillowcase) that belonged to my husband as a child.  It is still in great shape - soft with no identified stains or tears.  The first 2 images are the flat sheet.  The second two images are front/back of the pillowcase (Optimus Prime and Bumblebee).