“Found at my house after a 4th of July party. The black part is plastic with a detachable metal cap.”
Answer: "It is the bottom of a handle for (likely) a metal utensil of some sort. I have a set with a spatula, ladle, spoon, ice cream scoop, and pizza cutter that have ALL started to have their bases fall out over time."
I think it might be the 95th time I have seen that picture on this site, and yes, old toothbrush :)
Yeah, how could a sponge be used for RFID?
Yeah, Izi, we've been over this before.