Offer, who appeared on infomericals for his movie and also sold kitchen utensils at a swap meet, appears as a spokesman in a commercial for Shamwow! absorbent towels that began airing in the spring of 2008. Offer's work on the ad received some comment in the media. Slate.com's Seth Stevenson praised Offer for his "impressive and subtle mastery of the pitchman's art" and wondered if Offer's "abrasive manner might also mark a unique, new strategy in the annals of pitchdom." Stevenson compared Offer to earlier, gentler television pitchmen like Billy Mays and the Home Shopping Network hosts and concluded that Offer's "smooth-talking condescension" was more suited to the present zeitgeist than the "earnest fervor" of spokesmen like Mays and Ron Popeil.

Stevenson noted that Offer's "hectoring tone... makes us feel like idiots for even entertaining the notion of not buying a Shamwow."

From Stevenson's article:

Offer's history includes lawsuits waged against the Farrelly brothers, Anna Nicole Smith, and the Church of Scientology. He also wrote and directed the 1999 film The Underground Comedy Movie. The New York Post review gave the film zero stars, said it "may be the least amusing comedy ever made," and asked, "How can the War Crimes Tribunal indict Slobodan Milosevic but let Vince Offer still walk the streets?"

Harsh! But hey, Vince is certainly not boring, and therein lies a significant component of his effectiveness. The guy's jerky, aggrieved attitude jumps off the screen—particularly when he berates his own crew, snapping, "You followin' me, camera guy?" Vince manages, in the course of a minute spent swiping counters and dabbing at carpets, to make us wonder, "Whoa, what's the deal with this freak?" That makes the ad an attention-grabber, and it helps the Shamwow stand out from a crowded field of useless doohickeys.