In 1968, Helms and Graham began turning to other artists for their poster work, and Mouse's career languished. After brief periods in London and Massachusetts, he moved to Toronto where he ran a Yorkville waterbed store called The Waterbed Gallery—with the walls featuring his artwork. Mouse returned to California to live in Marin County near Kelley. The pair resumed their partnership in 1971, producing commercial artwork related to the Grateful Dead and later Journey. The pair are credited with creating the skeleton and roses image that became the Grateful Dead's archetypal iconography, and Journey's wings and beetles that appeared on their album covers from 1977 to 1980. In 1977, Mouse, with Kelley, created the intriguing Styx album cover for The Grand Illusion with a stylistic homage to painter René Magritte. Mouse and Kelley continued to work together on rock memorabilia until 1980.