I made mine to use on my 8-foot Bass Hunter from fiberglass rods and stainless steel hardware, and a plastic T-handle. Mine are 2-section, 8-foot anchor pins that join in the middle. See
www.catfishedge.com/shallow-water-anchor for where to order parts, how to make, etc. I think mine ended up costing me something like $140 for the pair. They
can be difficult to drive into a hard bottom, though.