Over the years, Boulder collector David Tippit has gathered up nearly 900 psychedelic rock posters dating back to the 1960s and '70s. In February he announced his intention to donate them to the Denver Art Museum's Department of Architecture, Design and Graphics. Included in the collection are examples by the biggest names in the movement, such as Rick Griffin, Stanley "Mouse" Miller and Victor Moscoso. Although the posters are not yet on display, the museum plans to rock and roll with them some day.