What is this plastic thing we found in our house? Round plastic disk (about 3" diameter) with zigzag slots and a pull tab/handle.
We found this in the kitchen cabinets after a recent move. Other things we found left in the kitchen were a french press, a loose leaf tea brewer, and a travel mug, so we think it may be drink-related. It looks like it could be a good size for the French press, but I've looked up french press accessories and can't find anything.
Anybody know what this is?