TILTED POT HERB GARDEN! - 3/8 inch rebar (4 ft for this size) - 2 pieces of 1 1/2 inch PVC pipe cut to fit criss cross in the bottom of the large pot (angle ends for best fit) - as many pots as you want - large on bottom - criss cross PVC pipe in bottom of large pot then drill a hole straight through both pieces in the center...rebar should go through both pieces and into the hole on bottom of pot - suggest you fill smaller pots with dirt before you thread onto rebar
Tumbling composter that I made from mostly spare parts laying around the house. There is a 3 inch PVC pipe with 3/8 inch holes for ventilation mounted to a toilet flange on the bottom. Holes on the outside are 3/8 inch and spaced about 4-5 inches apart in a grid pattern. Nothing was really measured and kinda just "eyeballed" but it works fine and spins easy enough that my 4 year can spin it.
$4.96 (Buy here: https://alitems.com/g/1e8d114494ebda23ff8b16525dc3e8/?i=5&ulp=https%3A%2F%2Fwww.aliexpress.com%2Fitem%2FNew-2015-3-8-Inch-Water-Purifier-Filters-Card-buckle-Dedicated-PE-Pipe-Quick-Connector-Snaps%2F32559296106.html ) 1/4" 3/8 Inch Water Purifier Filters Card buckle Dedicated PE Pipe Quick Connector Snaps Pvc Pipe Cap Aquarium for just $4.96