Originally Posted by dukeboone
Now there's a sage idea. Did you use a table saw?
Made a few templates to see what worked. Cutting it in half and they fell in. Made one side 2"-2 1/2" larger than the other. Used my Dremel rotary tool with a tile cutting bit. Used the cone adapter making it like a router and made about 4 or 5 passes lowering it a bit each time. Then took some 400grit wet dry sand paper to smooth the edge.
Note that we have to secure it while traveling as it will bounce easier than the full lid. Sure adds more counter space. Also, don't place heavy objects on the cut lids as it doesn't have as much support as the full lid. You will know by the flex if it's too much. A gallon of milk is too much if placed near the center!