What is small and powerful? Yes, it is the mithril attachment upgrader. It is made by small poeple.

The Mithril Attachment Upgrader is an Enhanced upgrader that adds 10% to any drop worth less than 1T, up to 40 times for a maximum multiplier of x45.26(rnd. up).

It needs to be attached to a conveyor (recommended to uses Small Conveyors or Simple Conveyor). It is also an unmissable upgrader for mid and end game content!