A non comprehensive list of toys I fancy. I already own a N770 which is quite a toy and a HP 49g calculator!
http://gumstix.com -- thinking these could be very useful for experimental physics, ie labs. There should be a easy way to make one of these drive your experiment and read some values for you. Set it up, let it run and grab a coffee and then be totally confused by the data it gathered.
http://www.cuboro.ch/en/ -- a wooden toy from switzerland! basically its a marble track. it looks very pretty and is made from proper wood and has several levels and everything, looks fun. [via cool tools]
more to come