Alphabet Ice Cube Tray Assorted 72 Packs of 2 by FindingKing. $96.99. Have fun with ice when you use these ice cube trays. Each shape features a letter in the bottom so ice cubes come out with a letter on them. Fun for kids and adults; these ice cubes would be a great addition to a classroom or to a kid's birthday party supplies. Color choices include pink; green and blue.