It's small
It takes a battery
It vibrates or plays music
It can make some people have all the fun
while others get frustrated
you can play with it alone or in a group
it fits nicely in your hand
it comes in many shapes, sizes and colours
girls like them often more than boys
http://www.google.com.au/imgres?imgu...QEwAg&dur=1734
so what else would it be
