Usually it’s sockets but mostly collets

A couple of years ago, I had a “Eureka” moment and bought a large rubber mat with lots of holes in it, the seller at Rare Spares assured me that they would trap small spares eg:collets in the holes and hours or days would be saved, enthusiastically I parted with my well earned sheckels and dragged it to beneath my work bench. This seemed to work initially except for the majority that bounced off the rubber and still disappeared under the bench, “Murphy”s Law” dictated like toast landing butter side down that 75% of my collets still went into a parallel universe annoying to say the least, recently I was in Ireland and you can see why the Irish are like they are and “to be sure to be sure” they must loose lots more than collets.