I have been watching some DIY videos on Youtube.... They show how to make a recurve or longbow using PVC pipe. I went out to the shop and started making my own. I bought a 10 foot length of 1" Schedule 40 PVC at the local hardware ($6.55) A heat gun is used to make the pipe pliable, and you can shape the bow any way you want. The most expensive part of the bow is the string, but I had a couple laying around from my other recurves. I plan on making another bow, and fitting it for bowfishing. Both of my children have asked me to make them a bow, and for around $7.50 each, how can I say no?!?!
I've seen some of these in action and they are no joke when done right. Take a vid of you shooting it, I'd love to see it.