Does anyone have any craft/gift ideas for glass coca-cola bottles?

I’m looking for craft/gifts using the 8oz glass coke bottles. Christmas Craft show kind of ideas. I’ve seen the puzzle one with the stick in the bottle with a nut and bolt through it & the bottle turned into a kaleidoscope, but I need some fresh new ideas for really cool crafts/gifts made out of these bottles. Looking forward to everyone’s ideas!! Thanks!!