I use an old breaker box I found in my shed as a pellet trap. It is a little larger than a 8.5x11 inch target and made of metal that is about 1/16th thick. I fill it with rubber mulch and put a piece of cardboard over one face to keep the mulch in and hold the target. I bring it in at night. It's been feeling a little heavy so I decided to clean it out. I used my leaf blower to help separate the mulch and some blue jean material from the pellets. Took about an hour. Recovered 10.8 lbs of pellets.