You can make a bunch of kids bows in no time, just to get started, by using pvc pipe, cut slots in the ends and string with strong cord or kevlar fishing line. To make wood bows get a copy of The bent stick, by comstock, or the first bowyers bible, Oak is a good starter wood, available everywhere. You can back it with fiberglass cloth and epoxy very inexpensively,instead of boying expensive bowyers glass, this stuff doesn't increase speed much, but makes it almost impossible to break the bow,only put cloth on the back of the bow, the side away from you when you shoot, doesn't work on inside. YOu can buy good and inexpensive epoxy and fiberglass cloth from jgreer.com, look in the boat building section. Good luck!