The Levitating Chalenge is on sail in UK toy shops for £39.99 - but is availible for 20.55 if you buy it on a US websight.
The manufacturers say the diferrence in price is down to tax laws and buisiness costs.
The Consumers' Association, which looks after shoppers rights, says uk custumers should expect to pay 25% more because of these added costs - but not dubble the price.
Not such a bargin
Fans wanting to avoid paying higher prises could try buying them from American-based websites.
But you and your parents should make sure that the sites deliver to the Uk.
And double-check that, after adding in taxes and delivry costs, your still getting a good deal!
Do these prices put you of the toys or are you still wiling to pay? Let us know by sending in your coment on the right hand side of the page.