Drill a hole in the side of the bottle near the bottom and feed your lights in through the hole. Plug it in and you've got yourself a rather novel little bit of mood lighting. Add colored or clear stones/gems.
Bonnie Jacobsen Elmer
Recycled Wine Bottle Lights by OldGlassWithClass on Etsy, $16.99.. Easy DIY just drill small hole in back of bottle for cord. Saw this at a winery last weekend, it was beautiful!!