Archinect did a pretty fanboyish interview with Mark Mothersbaugh on the occasion of his rug exhibition at the Scion Gallery, and though there's no mention his Yo Gabba Gabba! appearances, Mothersbaugh shared this profound insight on the preference for subversion over rebellion:
One thing we learned from the hippies was that rebellion was obsolete. Hippies turned into safe little yuppies, and punks turned into safety pin wearing paraphernalia consumers.And those punks will be interested to know that Mothersbaugh's rugs are priced at $275 for 22" x 34", and $850 for 4' x 6', and on up for larger sizes. Start subverting, while supplies last!