Rotor
Survivor
They could also do something that is more common in Adventure Games and tie the special object to a difficult or multi-step quest.
For example, if you could only find the crucible in a specific Wasteland POI, that means that for most players that would be locked behind quite a bit of progression. They'd need to gear up and get some points under their belt and probably do the Biome trials first, and then they could finally have the time to explore some specific POIs in the Wasteland to hopefully get a crucible item or even the crucible recipe.
Just an idea.
I think by the time you can reliable loot the wasteland, you dont need a crucible.
I mean if you dont mind dying and going back in, no big deal. Since I play dead is dead, I dont wasteland for loooooong time.