For years I have used wood chips and cubes soaked in random sprits and wines. I finally broke down and bought a barrel that I could fill on my own from Woodinville, a nice little 8 gallon Bourbon Whiskey Barrels that just got dumped. I spent the day making a nice stand to place it on top of a cart to move it around.
Anyways, I waited a few weeks to get mine but I just noticed that both Bourbon and Rye 8g Barrels are available again.