Ergonomic biscuit cutter

I designed this for someone who is into making [Egg in the Basket](https://en.wikipedia.org/wiki/Egg_in_the_basket) (I grew up calling it Toad in the Hole) - an egg fried into a circular hole cut in a slice of bread, so the bread soaks up the egg yolk. She wanted the perfect size cutter; I wanted to make it easy to use and comfortable on the hands.

The sine-wave grip in the center is nice to hold while you're twisting, and the faceted circle seems nice for cutting through the bread.

The circular cookie cutter is possibly the easiest useful object to design... but I thought my variation might be useful.