This little sprung gadget can be attached to a note, or any other light object, and allows the prankster to whizz it away when reached for.

These are from a company who have manufactured and traded jokes since 1924. They come packaged with fantastic artwork as you would expect from Funny Man jokes.
 
Manufacturer's safety information: Not suitable for children under 3 years. Choking hazard due to small parts and thin cord. Not recommended for children under 7 years.