Delivery pizza cutter
Here’s a picture that sparked quite a debate. This object is obviously a pizza cutter, but what was the purpose of the spoked wheel in the back? Some people speculated that it was used to cut thicker pizzas, but this was eliminated when expert pizza makers claimed that the regular wheel would do the trick.
The likeliest answer is that the pointy wheel is made to cut delivery pizzas. The wheel would cut enough of the pizza to make it easy to separate from the entire pie while leaving it intact for delivery. While no one knows what it is for certain, this is probably the most reasonable explanation.