Wrap a piece of tape around the base of the bottle to create a thick stripe going around the whole bottle. Run a piece of tape from the bottom of the bottle up to the mouthpiece to make a vertical stripe.
You don’t have to paint your wine bottles a solid color. Pick designs or patterns you like and paint those on the bottles instead. You can also marble your bottle. Take a bucket deep enough so that you can dip the bottle into it. Fill it with water, add some spray paint or even nail polish, and dip the bottle. To get a better marble effect, use spray paint of different colors and then swirl it around using a toothpick or something like that.
Make sure you wait to add decorations after you’ve cured your wine bottles in the oven.
Ask someone to help you with this part. One of you can drill the hole while the other sprays the drill bit with water.
Pull up 2 or 3 sections of the lights so they are firmly packed in the neck of the bottle. This will prevent them from sliding back down into the base.
You can find spray-on acrylic sealer at your local crafts store.
Look for craft glitter at your local crafts store.