Last year I purchased a few of these plastic containers from Lindsay's shop. They have proved to be the perfect little containers for crayons, as inevitably those cardboard boxes break. The OCD side of me likes the way these ones stack, and how pretty the coloured crayons look through the clear plastic (until my daughtered covered them with Dora stickers!).
I take these containers with us when we travel, but it is also a nice way of giving each kid their own little set of crayons if you have multiple kids coming over (read: battle royale averted!).