My oldest brother, Todd, has the gardening itch this year (actually it might be garden pox judging by his scratching) and is converting his front yard to a small farm. I promise to get more pictures of his projects, but first wanted to show off his $3 (plus some bits of building materials he had lying around) trellis.
The basics? taking a 2 x 4 and using a table saw to cut it down into lattice strips, while leaving about 6 - 12 inches at the base uncut. Cut some scrap wood to create 2 spreaders to fan the boards apart. Todd used screws with scrap pex pipe (cut to about 1-inch lengths) instead of spacers to attach the trellis with wall anchors into the brick facade of his house, but any sort of strong, rigid pipe-like material would work.
We're moving our hops to a sunnier location this year, and a couple of these trellises will help 'em reach for the sky.
Are you planning a garden this year? Check out this great post that spells it out for the beginner gardener.