An alternative, would be to use a soldering iron to make the hole next to your marks.
The silver mylar part bags that most electronics come packaged in look just as good. Cut to fit, and glue to the tubes.
This guide was first published on Oct 22, 2013. It was last updated on Oct 22, 2013.
This page (NeoPixel Rings) was last updated on Nov 18, 2020.