RayGun was an art group in the late 1970s. The group consisted of Tacie Gunn and Charlotte Rhea. Gunn and Rhea formed Ray Gun Art Mechanics Inc. in 1975, and the pair "sewed, sculpted, painted, acted out and burnt their thesis on the lawn of TU..." 

Source:  Memory Score: Living Arts of Tulsa, an overture to overtime (public library)