This has proven to be a good way to present materials and to invite children to use them appropriately.
I got this caddie at a garage sale having this idea in mind. It has worked out perfectly. The children are able to help themselves and they haven't been hording the crayons. They have been taking the crayons out one by one - sharing and putting them back into the caddie. When the crayons have been in a large container they tend to take fists full out. The sharing then becomes an issue. Sometimes a freebies turn into treasures :)