Brainstorming : bonuses and weapons

Funto suggested STK could feature more bonus items (this is not a priority, but brainstorming does not cost a lot
).
Do you have ideas about bonuses / weapons that could be added to the game ?

hiker {l Wrote}:what about a remote control? For (say) 5 seconds you can't steer your own kart which will just go straight or be controlled by the AI, but you control the first kart? Or perhaps switch two players, i.e. those players would drive the kart of an opponent for a limited time?
Kinsu {l Wrote}:I've noticed that when I was first I often got bubble gums, and when I was last it is more zippers. Zippers are cool to get back in the race, but bubble gums are maybe a little boring in the end. I think if a new object has to be added, it should be one that is useful for the first kart (as temporary invincibility to avoid anchors, or maybe an object that enable the player to do something on other karts in exchange for a little nitro or speed...
Do you have ideas about bonuses / weapons that could be added to the game ?