Key in jar

[FlawlessHappiness]

A cheap trick that might work:

You create the jar, make it Static and without a contained item.
You create the key_custom and place it in the same spot the contained key is, make it inactive.
Create a callback when interacting with the Jar so that it breaks (prophealth = -1) and sets your key_custom active.

This should work, imho.

But it wouldn't make sense that the bottle just broke...