Don't waste your money on this one, folks! My son desperately wanted one, so I told him if he wanted one that bad, he'd have to use his allowance money to buy it. That's exactly what he did, but boy was he disappointed when it didn't work. We tried it twice - the second time I followed the steps in the instructions with him to make sure he was doing it right. It didn't work again. He was bummed until I explained how we could return it and get his money back. I guess I took it for granted that he already knew about refunds! Anyway, needless to say, no more slushy cup for us. What was your experience with the slushy cup? Did it work for you?