The DIY can crusher can sit on a table so you can easily crush cans. A homemade can crusher takes less than an hour to make, but will last for years. When you use a crusher to make the cans as small as possible before placing them in a recycling bag or bin, you can fit in more material than if you throw away cans that have not been crushed.
Attach the screen door spring hinge to the ends of the two boards, using screws. Place one side of the hinge on one end of the first board. Place the other side of the hinge on one end of the second board. If you don't want to use a spring door hinge, you can use a standard door hinge in the same way.
Drill two holes in each of the jar lids. Open up the two boards so the inside of the boards--where they touch each other when closed--is facing up. Place each jar lid 1 inch in from the end of the front of each board. Center the lid in the middle of each board. Use two 1-inch screws to secure each lid to the board.
Close the two boards so the lids are inside. Attach the door pull, which is shaped like a "C," to the top of one board. Attach the handle lengthwise, with the front of the handle 1 inch in from the front of the board. Use the screws that come with the handle to attach it to the board.
Place a can between the lids and press down to crush it.
Make sure that all of the liquid is emptied out of the can before using the homemade can crusher. After placing the can between the jar lids, remove your fingers from the can before crushing it.