Due to not wanting to sacrifice all my Younglings, Young Jedi Knights and Reborns to my custom Lightsaber needs, and inspired by Billiv finding thin, translucent, plastic rods to use over in the USA I got searching over here and came across the website below. Reasonably priced, but no purple. It looks like I will get quite a few lightsabers out of each rod.
Lightsabers here