I have played around making larp safe bows. And just wanted to share a couple of successful designs. The one i am most proud of is made using 5 ft of 3/4 inch pvc tapered and shaped using a heat gun to look like a welsh horsebow. 30 lbs at 28 inch draw. 1/2 inch makes a good bow too at about 15 to 20 lbs. Unlike fiberglass or wood bows these don't shatter if overstressed. They just bend and can actually be reheated and reshaped. I tried sharing photos on here but for some reason it wont let me.