You can try ERC from the box hardware store. You'll of course have to take them from board form to dowel, which isn't impossible. Just be aware that the wood is soft and prone to tear out. I found hydrating them with wood oil prior to doweling and sanding helped with this. Leave them 3/8 to start. Most of the ones I made came in between 35-55# depending on the board. They were really lightweight, between 300 and 350 grains for a 32" blank. They seem to hold up okay. The few that I broke should have been discarded due to grain flaw, but I hate throwing stuff away. After the second one exploded in the bow, I changed my opinion on being picky. When it comes to arrows, better safe than shish kabob.