Ghost Item marker

[HellBlade64]

I'm working on a class-based pickup for one of my mods, and what I am trying to accomplish is this:

When the item is picked up, it leaves behind a "ghosted" (translucent) version of the item that can't bet picked up on the spot where on the map it was placed and picked up from and after a certain amount of time, the ghosted version gets replaced with the original non-ghosted item pickup. Basically a visual respawn timer for items. The whole reason being that item itself is a weapon box that gives the player a special weapon unique to their class and, on the mod's UV and Nightmare-adjacent difficulties, items don't respawn.

Otherwise, I'd also like to know how Samsara's class-detecting weapon pickups work, too, as an alternative solution.