1965, Rainbow Crafts issued a patent for Play-Doh. Also in 1965, General Mills bought Rainbow Crafts for $3 million. In 1971, Rainbow Crafts and Kenner Products merged, and, in 1987, the Tonka Corporation bought the two. In the 1980s, its cardboard can (with a rust-prone metal bottom) was replaced with a more cost effective plastic container. In 1991, Hasbro became the owner of Play-Doh, and continues to manufacture the product today. In 1996, gold and silver were added to Play-Doh's palette to celebrate its 40th anniversary. Mascots Play-Doh packaging was briefly illustrated with children in the mid-1950s, but replaced by the Play-Doh Pixie, an elf mascot which, in 1960, was superseded by Play-Doh Pete, a smock and beret-wearing cartoonish boy. By 1992, Play Doh Pete's beret was recolored in blue, and his eyes were given a more human look. Later in 2000, Play-Doh Pete's beret was replaced with a baseball cap. Play-Doh Pete later retired and was removed in 2003, lasting for 42 years. Since 2012, the Doh-Dohs are the mascots. Ingredients Play-Doh's current manufacturer, Hasbro, says the compound is primarily a mixture of water, salt, and flour, while its 2004 United States patent indicates it is composed of water, a starch-based binder, a retrogradation inhibitor, salt, lubricant, surfactant, preservative, hardener, humectant, fragrance, and color. A petroleum additive gives the compound a smooth feel, and borax prevents mold from developing. Play-Doh contains some wheat and may cause allergic reactions in people who are allergic to wheat gluten. It is not intended to be eaten. Related merchandise In 1960, the Play-Doh Fun Factory (a toy press that extrudes the compound in various shapes) was invented by Bob Boggild and Bill Dale. The Play-Doh Fuzzy Pumper Barber & Beauty Shop of 1977 and Mop Top Hair Shop of 1986 featured a figurine whose extruded "hair" could be styled. In 1995, an educational software CD-ROM game, Play-Doh Creations was released. In 2003, the Play-Doh Creativity Table was sold. Play-Doh related merchandise introduced during the 2007 anniversary year included the Play-Doh Birthday Bucket, the Play-Doh Fifty Colors Pack, the Fuzzy Pumper Crazy Cuts (a reworking of the 1977 Fuzzy Pumper Barber & Beauty Shop), and the Play-Doh Creativity Center. In 2012, "Play-Doh Plus" was introduced. It is lighter, more pliable, and softer than regular Play-Doh. Cultural impact More than two billion cans of Play-Doh were sold between 1955 and 2005, and, in 2005, Play-Doh