So, after the debacle of a multi page post with several people saying older equipment is good and more people call those people idiots with a few people effectively arguing that older eqiupment is not good, my tank (from 1973, it's 4 years older than my television) passed hydro with flying colours (.8ml permanent expansion!!!!) and failed VIP. I figure I could try to sell the J valve for a few bucks, but I still have an old US Divers Luxfer AL80 cylider, black with very little paintflecking, with about 6 or 7 old VIP stickers and some "Us Divers Professional" sticker lying around. What should I do with it? Yes I know there are practical examples, such as "recycle it for a few bucks" but I'd love to also hear the wildest ideas you can think of that are feasable to do with relatively little time and money put into it. I'd rather spend money on a new AL80 than to do something crazy with my old one.