Bébé Gelée Ocre

As an action, you can splash the contents of this
vial onto a creature within 5 feet of you or throw
the vial up to 20 feet, shattering it on impact. In
either case, make a ranged attack against a
creature or object, treating the acid as an
improvised weapon. On a hit, the target takes
2d6 acid damage.
It could be nurtured and grown to a full sized
Ochre Jelly given the right circumstances.