I was about to start in on making a square press basket out of 3/4" x 3"
boards but stopped in a local Home Depot by the Sono Tubes. These are the
tubes that are used as concrete forms for pilings. I was thinking that if
a tube was varnished as the wood would be then it may make construction
alot simpler. However I don't think the Sono Tube is optimal since it's
made of cardboard.

Can anyone think of a another perfectly cylindrical object that could be
used? A white plastic pail like a secondary is conical so it's out. The
only other item I could think of was a plastic pipe like they use for city
water mains but I think they may be difficult to find. I'm wondering if
anyone can think of something else?

Don