The NSFW conclusion proved the "Last Week Tonight" host's point. Dildos rained down on “Last Week Tonight” host John Oliver at the end of his prediction markets deep dive, which aired Sunday. The NSFW finale was a nod to a recent trend at WNBA games, where multiple matches have been disrupted by fans throwing sex toys onto the court mid-play — in some cases linked to attempts to influence trades on fast-growing platforms like Kalshi and Polymarket, where users can wager on almost anything.