If you hold a stick in your main hand and one of the four listed items (magma cream, gunpowder, fermented spider eye, feather) in your off hand, things will happen...
Magma cream: the stick will shoot fireballs
Gunpowder: the block which represents your location will turn into TNT
Fermented spider eye: will turn you completely invisible with no particles
Feather: will grant you levitation effect
