Catfood can Lid Stacking ring Remix

I printed a few of the can lids (by slipperyskates) and liked them BUT when I stacked some cans in the refrigerator the top was so flat and smooth the cans slide apart very easily.There needed to be some thing to stop the cans from sliding off. I used Netfabb and sliced the middle section out of the lid saving it as a separate file. Since the lids had been printed with ABS it was simple matter to brush Acetone on the ring and place it on the lid. Just like if it was printed that way