There's more to it that finding a good straight weed and putting a tip on it! Even the Indians were peculiar about the woods they used.
You are at a disadvantage in PA, you do not have the two best arrow woods in the nation, which are river cane and vibernium.
You do have some second choices.
dogwood is always a favorite. wild rose is good too. There is actually a shrub called arrow wood, and for good reason.
Some os us have the advantage of owning our own homes, so we can plant what we need and call it "landscaping". I have cane, vibernium and arrow wood growing in the yard.
Stay away from dowels like you buy at the hardware, walmart or ome depot. They are poplar, very brittle and not cut properly with the grain.
All the supplies and instructions you need are available from http://www.threeriversarchery.com
You use ferrel glue on the nocks and tips.