Anyone know a good place around Lafayette to get some ground corn cob to use for tumbling media? I found a place out of Clevelan, OH that sells a 50lb bag for $17. They sell several different kernal sizes, but I'm not sure which size I would need without seeing it in person. Does anyone buy cob in bulk locally or order it in? I think I'm looking for size 14/20, but I'm not positive.