Time to break out the 3D spex again! Here's the flat, but somehow still vibrantly pulsating cover to Bikini Battle 3D, published by Ray Zone's 3-D Zone in 1991. Art by that pesky Robert Crumb, colour separations by Kim Deitch.
And here's where you pop the glasses on, Red lens on the left, blue on the right.
Then stand well back or these gals will have your eye out!