Purse nets are wide-mesh traps used to catch small wild animals. Trappers stretch the opening of a purse net over the opening of an animal's den ground to catch it as it attempts to exit. The animal then becomes tangled in the net, facilitating its capture. You can make a quick purse net with common supplies found at hardware stores.
Cut a piece of sturdy cardboard 6 inches long and as wide as you want the purse's mesh to be.
Tie a piece of string to a key ring. Tie the other end of the string to an anchor, such as a doorknob or bedpost, to keep the ring raised and easier to work with while you make the purse.
Tie a piece of twine to the other end of the key ring.
Hold the piece of cardboard with the long end against the key ring. Wrap the twine around the cardboard, then through the key ring. Repeat this action 15 times to make 15 mesh loops.
Ease the loops slowly off the cardboard. Place the cardboard piece against the row of loops.
Wrap the same twine around the cardboard, then through the first loop, then around the cardboard again, then through the second loop. Repeat this pattern until you have a second row of 15 mesh loops. Slowly ease these 15 loops off of the cardboard strip. Repeat the entire process until you have as many mesh rows as needed.
Place the cardboard against the last row of loops to make the final row. Wrap twine around the cardboard, then through a second key ring, then through the first loop in the last row. Repeat this process until you have a complete final row of loops, each loop threaded through the final key ring.
Trim the end of the twine and tie a knot to secure it around the key ring. Ease the final row of loops off the cardboard.
Hang one of the key rings to allow the net to expand to its full length. Measure the length of the net and cut a piece of elastic two times this length, plus 2 inches.
Thread the elastic through the mesh around the perimeter of the net. Tie a knot to secure the two free ends. (The elastic will be the purse's drawstring.)