Three thoughts:
1. A few weeks ago we visited a company in Vermont that started out making cutting board, wine racks and other kitchen items, but their showroom now offers a full line kitchen ware, cook books, and specialty foods. But their 'core skills' remain with wood, and operate a full shop out behind the showroom where they make the stuff (mostly hard maple, but some walnut). They had a rack next to the door of scraps that they were selling as 'kindling' - but the clerk told me that she wouldn't report me to the wood police if I bought some for turning. It was cheap - $6 for a box, select it yourself. Are there any businesses like that in OKC?
2. Flooring is also a nice material for turning. You might find free oak scraps at construction sites - and perhaps even some more exotic materials.
3. Norm Abrams of the New Yankee Workshop did a program a number of years ago in which he recycled hardwood pallets to make furniture. Not all pallets are hardwood, and you have to get past the initial appearance. You also need to carefully inspect the wood for nails and other fasteners. I've got an old pallet in my shop just waiting for the right project to come along - - -