Step 1: The materials
2, 1"x6"x16" SIDE
2 1"X8"X16" TOP/BOTTOM
1 1"X6"X6" DOOR
1 1"X8"X8" BACK
use pressure treated lumber if you dont want to have to waterproof it yourself. I used plywood that i had left over in my garage it was very bad so dont use plywood.
fish line, string, wire anything of the like
nails or screws
hinge, preferably one of those little hinges with the spring built in so it stays open automatically, or just use a rubber band and a couple of screws to make it have the spring action.