I almost forgot to whip out this trick this summer.
It's a great way to tear through a case of cherry tomatoes should the need arise. Or any similarly shaped produce for that matter, such as grapes, olives, jellybeans etc.
All you need is two tops from the typical take out containers.
Lay your cherry tomatoes (or like-shaped goodies) in one lid.
Place the other lid on top.
Holding the hole rig in place, and keeping your fingers out of the way, saw through the gap. [I prefer serrated knife for this.]
and there you have it.