On a recent spree, we scored issue #8 of Super Taboo (an animé-porn comic, $2.95), a pack of tobacco-free "Ecstasy" cigarettes (agonizingly awful-tasting, $5.95), and got the hard sell for (but didn't purchase) a rain-forest-derived hallucinatory herb called Salvia (sounds pretty cool, $32.95). And thanks to the sleaziest array of fetish videos imaginable (or, more accurately, unimaginable), kink fans will think they've died and gone to Al Goldstein's rec room.
For an even larger selection of subversive fun, check out Underground's catalogue, wherein you can find toys like the "Mind Molester," a 1" x 11/4" electronic chirping device you hide that chirps one second every five minutes 'til it's found ($29.99!); or try "Mega Sonic Nausea," which emits ultrahigh frequency sound waves that generate queasiness in all within earshot (a great way to clear a classroom, $99.99).
For the porn-inclined, foul-minded, criminal-hearted or just plain curious, the Underground Mall is a gold mine.