Some links for 3/8" sieves
As a recent devotee of Al's Gritty Mix, I've been touring the nooks and crannies of my area (central MD) collecting supplies.
After a brief and slightly psychotic session using wire cutters to snip out 3x3 squares from the 1/8" hardware cloth I did manage to find, I decided to consult ebay for a pre-made 3/8-ish sieve. Expensive, but cheaper than therapy or a 100' roll of 3/8" cloth.
Success! But I wanted to share some of the links if anyone else is suffering from the same madness: