Whilst now made seemingly trivially by Creators there is a long history of the production of miscellaneous concoctions, potions and small devices in collaborative workshops. All Alchemy is inherently somewhat unstable once removed from careful laboratory storage conditions and therefore will become inert after the end of any adventure on which it is brought.
These can only ever be used directly by their creator and are never activatable by any other individual. They may also never be applied to traps.