More ideas from Caroline
Easily done with a small soldering tool.  Do not cut the top until all the holes are made.  When holes are finished, use the soldering tool to cut through in a freeform shape connecting to give a lacy edge.  Paint the bottles.  There you go.

Easily done with a small soldering tool. Do not cut the top until all the holes are made. When holes are finished, use the soldering tool to cut through in a freeform shape connecting to give a lacy edge. Paint the bottles.