http://magellans.co.uk/store/Games__...100IF121?Args=
I bought one of these as my dad and my daughter both suffer from airsickness and this has completely dealt with the problem. Now whether this is by dint of the placebo effect or whether they actually work, who can tell.
As Deng Shiow Ping once said when asked about Hong Kong and the capitalist culture there, "who cares what colour the cat is, just so long as it catches mice....".