The Pogo mod for 1.6.4 adds pogosticks to the game. Not only do these pogosticks let you bounce around your world, they also come with features that let you kill any mobs in your way.
To bounce, right click while holding a pogostick or fall from a high spot. Hold shift to lock the pogostick or to activate the special.
You need this to craft pogosticks.
The wooden pogostick is the weakest pogostick. It cannot automatically bounce you. Can jump up 2 blocks.
This pogostick can bounce you automatically, hold shift to stop bouncing. Can jump up 3 blocks.