hate to admit it but I'm not to proud to reach into a refuse container if I see soemthing I can repurpose.. good cardboard boxes in small and medium sizes are at the top of the list as i use them to sort brass. I also will pull out large 1-5g jugs and pails if they are the hd plastic kind.. especially the 1-3 g jugs that cooking products come in to restaurants. I find they make great storage for tumbler media, and great range brass sifters. I take a suitable jug in the 1-2g size .. a thick one with a good molded handle.. not those thin milk jug types.. but a stiff one. i cut the nose out leaving the handle and a wide opening.. then I drill out the bottom with a 3/16 or similar bit all around.. makes it were sand easilly drains with a shake, but brass won't drop out.. not even 22lr shells.. at the range i can sift and scoop the sand around the bench and shake and come up with good take home brass. I have seent he metal detector type.. but they have holes so big that 45acp cases can fall thru! anyway.. just sharing my frugalness.