Elsie Sticks were plastic ice cream sticks which became useful as and interlocking toy after the ice cream bar was eaten. They were produced in the early 1970s through Borden, Inc. dairy in the United States.
Historically, Elsie Sticks appear to have emerged in the 1950s with U.S. Patent 2,844,910 a construction kit made of wooden ice cream sticks by the Southern Ice Cream Company of Kansas City, MO. This patent was extended in 1972 with U.S. Patent 3,663,717 and U.S. Patent 3,748,778. The new toy design utilized plastic and modified the interlocking stick design.