Popcorn Shaper ~ Make Popcorn Cubes, Blocks, Rice Krispie Treats & More! Popcorn & Rice Krispie Treat Shaper! Makes 2 1/2 inch cubes in mold that popcorn will not stick to, easy release tab ejects each creation. Create fun shaped treats without burning your hands! Great fun for the whole family, Recipe included. Excellent Gift! House warming, Birthday, Team parent, White Elephant, Etc...