Rubber Nen Ability

Thought of another fun nen ability. The ability is to shape aura into a bat and give the property of an extremely bouncy material (rubber I guess, unless there's a material bouncier than that). The basic idea of this ability is anything that is struck by the bat can potentially become a deadly projectile.

Let's say I had a baseball and I struck it with the nen bat. Some of my aura is transferred to that baseball and transmutes into the bouncy material, but only in that brief moment where the bat makes contact with the ball. This greatly increases the speed of the baseball. This can be applied to anything, hit a person with the nen bat and that person will also go flying.

Plus, I can just bounce around which would be fun. I could surround myself with the bouncy aura and just become a big bouncy ball bouncing all over the place.

I could also transmute the aura into a rubber hammer, boxing gloves, pogo stick or whatever. I don't think it says anywhere that you can't transmute your aura to resemble more than one thing. As long as I'm familiar with those objects.

I'm not really good at naming things so I'm not sure what I would call it.