Clear glass bottles with long necks are prime candidates for making Christmas decorations. The shape of the glass bottle already resembles a tree, so it's not much of a stretch to decorate it like one. Make several glass-bottle Christmas decorations, add string lights inside the bottles and line them up on a windowsill or down the center of your holiday-dining table.
Remove any paper or plastic advertising from the outside of the glass bottles. Clean the outside of the glass bottles with glass cleaner. Dry the bottles.
Cover the outside of the glass bottles with green glass paint. Glass paint is designed for slick surfaces. It's also more translucent than acrylic paint, so the light from inside the bottles will shine through better. Place the painted bottle in a sunny location and allow the paint to dry.
Dot the green glass-bottle tree with different colors of glass paint to simulate hanging ornaments. Place the bottle in a sunny location to dry the paint. You can also bake the painted bottles in the oven to cure the paint. Follow the glass-paint manufacturer's directions for baking painted objects.
Cut a 2- to 3-foot strand of beading wire. Thread a crimp bead and a single glass-seed bead over one end. Wrap about 1 inch of beading wire around the seed bead and back through the crimp bead. Press the crimp bead with crimping pliers to close it around the wire.
Thread 4mm glass beads and seed beads over the wire strand in any type of pattern that you like. Leave about 4 inches of wire open at the end of the strand. Make a wire loop with the excess that will fit over the top of the glass bottle. Thread a crimp bead over the loop, thread the end of the wire through the crimp bead and crimp it closed.
Fit the wire loop over the top of the bottle. Wrap the beaded wire strand around the painted bottle to resemble garland. Glue the end of the strand to the bottle with viscous craft glue. Let the glue dry.
Trace the shape of a star onto copper foil. Cut out the star shape with sharp household shears.
Cut a 4-inch section of 1/4-inch diameter wooden dowel. Spray paint it copper. Let the paint dry. Glue the dowel to the backside of the star with viscous craft glue.
Insert string lights inside the decorated glass bottle. Place the star atop the glass Christmas tree bottle.