As a base line, let's start with my $10 wood net from Walmart that weights 4.5 oz. Go take a look at one and see how they are made. For about $4.50 for a bottle of gorilla glue,some thin strips of wood or bamboo, scavenged net, nylon thread, and a minimum number of tools, you could probably make one a little smaller and less handle at about 2.5 - 3.0 oz.