Has anyone here practiced dyeing techniques on anything other than the yoyo they want to dye? I’m looking for suggestions on cheap things I can practice and learn on that would be the same plastic as the non-celcon yoyos. When it comes to actually dyeing my yoyo, I want to be pretty certain of the results rather than trying something and hoping for the best. It would really be helpful if whatever plastic item is suggested is something you’ve actually practiced on which yielded pretty much the same results on the yoyo.
Another question, if I keep the dye/acetone mix in a fruit jar with a lid, how long can I keep it that way and still be able to rely on it? Can it be used multiple times over the course of several weeks or months?