Sparco, SPR15507, Controller Cash Box, Gray

Heavy duty case, tiered coin tray, lock with two keys, has plenty of trays, and less than $20? Can't beat it

Used for one event so far and it worked very well for me. The inside features keep all denominations in place (as long as the box is right side up for the coins.) The best feature is the latch on a hinge which keeps the box closed without the key. Most others require the key to lock the box in order to carry it around by the lid handle. With those it's easy to mistake the box for being locked and then once picked up, the contents spill everywhere.