I like the concept of reusing or recycling materials, so it was an easy choice to get my boards from my stash of used fence boards. I've used 50 year old cedar boards, and even though they are greyed on the outside, when cut, they look like they just came from the mill! The usual wood working tools are used, table saw, drills, cut off saw, screwdrivers, etc. It's nice to have lots of power tools, but they are not required to make simple wood working projects.
For the plumbing, I purchased a new faucet and aerator. For the pvc, I had most of that on hand, but did need to buy two hose bibb to pvc pipe pieces, and the hose splitter so that the table could be hooked up to my water source, but also allow me to use a hose for the garden and other plants I have.