Pen Turning. Learn something new today.
Did you know that there are people dedicated to the hobby of handmaking pens by turning them on a lathe? I didn't until I was contacted by a man named David who asked permission to link to my website so that other pen turners could purchase our colorants for their projects.
Here is David's educational link with photos: MasterdCrafts (p.s., note the TKB Trading liquid colors in use!)