Walmart [walmart.com] has Welcome to the Universe Baby E.T Stars Nursery Fitted Crib Sheet (I Love You to the Moon & Back) for $4.26. Shipping is free w/ Walmart+ (free trial available [walmart.com]) or on orders $35+.

Product Description from Walmart

• The E.T. Photo Op Fitted Crib Sheet is designed to create the perfect photo opportunity by capturing baby's milestones and special moments! This extra terrestrial crib sheet has a white ground with an allover sprinkling of light blue stars and a blue star border.


• Features E.T.'s silhouette riding on a bicycle across the full moon. Includes an encouraging saying, I Love You to the Moon and Back!


• Fits a standard size crib/toddler mattress that measures 28" x 52". Includes full elastic for a safe and snug fit. Made of cozy soft fabrics and is machine washable for easy care!