I learnt, that on depth 27 in vana, if you throw water at the front of the wheel: it BREAKS! The water broke the wheel!
Though it only works if the water touches the spikey part
Dunt know how to take screenies, :/ but I still think its cool!
Edit:
I didn't learn, I am currently in vana. No one told me.
vials have the same effect. and not only that, they work on any projectile, not only wheels; you can stop an howlizer bullet, a bullet shot by vana's mask, and I don't know about rockets cause I never tried. well, never had a pot of water and rockets at the same time.