Probably nothing you already own, but you need:
-Pump ('pond pump' from a garden store or home dePOT)
-1/2" tubing, 1/4" tubing, both from home depot
-Small barbed fittings to put it all together (hydro shop)
-Drip stakes- I like the blue stake ones because they are SO easy to unclog and clog so rarely- .25 USD each at the hydr shop
-Timer
-res- can be a 5 gallon pail for a small garden

Pics shown are the system without the timer, which turns it into a constant-flow delivery for vertical NFT. WITH a timer, it's just a drip system, and I STRONGLY recommend using it as drip-to-waste rather than recirc unless you are in a true hydroponic medium.