These picture tubes can be used to draw or trace any type of line, or shape, while creating an old worn chain. Choose any of those 10 tubes. Draw around a photo, an element, tie a tag, create a necklace or a bracelet, or simply hand doodle with this tube. Change the tube size to draw thick or fine chains. These old chains can very well match old gears if you like the Steampunk style.
If you want to follow a very precise path, you can use the Vector Tube script from Gary Barton available here (for free).
Compatible with PSP 8 and up.
Read more on What you can do with Picture tubes.
And for a complete class on using tubes and creating them check out the the Tubes with Direction Master Class.