A
skateboarding jump found typically in
skate parks and quite easy to
manufacture. There are a
squillion different
designs and ways to make a funbox, but the basic design is a
hexagon with its middle raised (like half a
hexagonial prism) so it is not
flat and you can jump of any side.
There are many others like ones with two jumps and a flat between them, ones with rails, ones with a large jump on one side and a small on the other... the list goes on. Generally they are small and hexagonal like above, nice and easy jump for beginners.