How to smooth a cut hole in glass wine bottles?

Denise Sheeler
by Denise Sheeler

Hubby just cut holes in the bottom of wine bottles for my holiday craft. The hole is mostly smooth from the outside but not from the inside. My concern is that once I add the mini lights, the plug end coming from the bottom will be subjected to the jagged edge. Any ideas? Hubby suggested a plastic grommet and I thought about a bead of hot glue maybe...

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