Kept mine in a muffin tin when my boys were little, same idea, one hole per color and it sat right on the table so nothing rolled. The other thing that saved me was a cheap cookie sheet with a lip, since pegs bounce and a tray edge stops them from hitting the carpet in the first place. We also made a rule that you dump one color at a time instead of the whole bag, which cut the chaos way down. My sister swore by a bead organizer with the little snap lids, but honestly the tin and the cookie sheet did the job for us. Now the bigger problem is the cat, who thinks loose pegs are toys.

Watched a guy at a tire shop blow out his brake lathe with an air hose last year and a cloud of that grey junk went everywhere, dude didn't even wear a mask. Used to figure brake dust was just part of the job and guys who complained were being soft. Then my cousin got told by his doctor his lung scan looked like he'd been breathing sand, and he spent six years turning rotors at a chain shop with zero ventilation. Now I look at a caked up lathe way different, that stuff is asbestos era bad for some of these older pads and nobody trains these kids on it. Three months of buildup in a back room with no fan is not just lazy, it's a health thing and shops get away with it cause nobody says anything. Good on you for cleaning yours weekly, more people should.