Thanks everyone for looking and responding!

 mel52
 commented about 10 hours ago
Sharp looking projects. I always wanted to know - Will the bottles only balance when they are full, or will it work at different empty levels ?  Good job !!!  Mike

I tried with an empty bottle and it worked fine, so I imagine it would work with everything in between - as long as you put the cork back in!

“Fake quotes will ruin the internet” — Benjamin Franklin