I recently got a shipment from http://www.scitoys.com/

Among the cool toys were:
a drinking bird:

a wicked cool magnifying sheet(fresnel lens) that I used to burn a hole in a piece of paper in about 30 seconds

and some rare earth magnets with some ball bearings

I made a linear accelerator with the magnets, but it didn’t work as well as expected. I need to try again