If it's not fun, you're doing it wrong.
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Professor Snotsengabber, a charter member of S.N.O.T.S.
A friend of mine once bought a dozen of them in a lot on e-bay at auction. If you can't find one I can ask if any of them still exist and if he would like to sell one. Several were taken apart and several were given to his nieces.
I did a quick search and there are new models available. The original was made for three years and there were 40,000,000 of them, so there are probably still some on e-bay or craigslist.