Here are a couple of designs we recommend:
Stackable wood bin: minimal carpentry skills needed, can use recycled lumber (as long as it is not treated)
Wooden pallet bin: all you need are four wooden pallets, bolts, and latches and you’re on your way
Wire mesh bin: easy to make and inexpensive
Homemade designs often do not include lids which is not a problem as long as you are burying your food correctly. In dry climates, is it recommended to line the following designs with plastic or thick cardboard to retain moisture.