If Tony’s 12-inch Original Crust sausage and pepperoni pizza shrank from 19.6 ounces to 17.1 ounces, how can the downsized pie claim “Larger Size”? The answer is in tiny type below the boast: It’s larger “compared to Tony’s Original Crust 10½” box pizza.”

For $299, AquaOne Technologies offers Fish ‘n Flush, an acrylic aquarium wrapped around a clear toilet tank. Or, in the Web site’s words, "a whimsical potty that turns your toilet into a nautical wonderland." We're just pondering the view from the fish’s perspective.

Never underestimate the sharp eyes (and creativity) of Selling It fans. This entry came from a reader who noticed that Zest had shrunk and changed shape. (The maker cites higher costs for materials.) At far right, the reader imagines what Zest will look like down the road.

This tease was in an ad for Avis and Delta’s SkyMiles program.

A few readers wondered how the TC7000 Super Saw could cut metal pipe, wood, and more, yet leave fingers unscathed. Turns out it can’t. When we asked two customer-service representatives about the ad, one apologized and said the ad was wrong: “It is a knife, and it will cut your fingers.” The second said it was all about pressure: "If you touch it, it’s not going to cut your fingers."