A new Trinket idea; The recycler
The Recycler would be the Green Trinket. Every time a nearby ally or enemy uses a disposable item, you gain 5 gold.
Qualifying actions include drinking a potion, placing a sight or vision ward, placing a trinket ward activating an elixir. Not counted: Placing a sightstone ward, using a charge of Bottle. Level 9 version: Gold per disposable increases to 10.
Purchased upgrade: (475 gold) You are refunded half the value of the disposable item that was used. This upgrade is specifically not supposed to pay out well in most games. The recycler ideally should be sold past the early game for another trinket.