I have a 99 and since I did not have a key, I also used a small flat head screwdriver. Then I found a key in my jewelry box that was originally for either a small suitcase or a diary. (Yikes, do they still make those little lockable diaries that all the girls had way back in the 50's or 60's?) It worked just fine. I do also see them advertised on ebay but often they are pricey depending on how much you want one. If you go that route, just make sure it is the flat headed key as there are others that are box shaped and triangular. Try the flat screwdriver and if that works you just need the flat key. Glad that you got that machine. Have fun with it.