For fun, I found this
. Here are some of the pizza cutters from that site. I'm sure there are more examples out there.
I wonder how much that thing weights
I think the blade looks small compared to the handle.
I think this one is scary, especially if the grease from the pizza gets splattered on the handle making it harder to keep a grip...
Nifty, for those who might like sharks or something like that
Looks like something from the floor of a garage
I wonder how that thing handles, with all the grooves and all.