Abstract: A bi-stable jumping toy that can be operated individually or with other jumping toys in a cascading chain. The toy has a first segment and a second segment that are joined in a scissor configuration. An elastic band extends between the first segment and the second segment. The elastic band biases the toy into the second configuration. However, the first segment and the second segment can be manually rotated into the stable first configuration. In the first configuration, the elastic band is stretched across the pivot axis and provides no rotational bias to either the first segment or the second segment. The toy is triggered by rotating the first segment and/or the second segment only slightly out of the first configuration. Once moved, the spring energy in the elastic band releases and the toy rapidly moves into its second configuration.