A dice tray and/.or a dice cup.
If you can find a cheap backgammon set, even one missing the disks, you're likely to get a tray and a dice cup or two. If you want to use it as two separate ones, one can replace the hinge with magnets, or modify the hinge pin to be easily removable.
I made a dice tray a week ago - I went to the local art shop., found a table display tray ($7), a sheet of foam to quiet it ($1.50), and a can of spray glue ($2.00). The can of glue has a lot of uses left, after making two.
If you're super cheap, hit the dollar-store or poundland, buy a $1 or £1 picture frame, and line it with dead T-shirt...
The progressive give (foam or cloth) reduces rolling noise, and causes dice to tumble a bit more. Even rounded edge dice bounce more on my foam-lined one. (My daughter wanted the other one I made.)