Maybe here: http://www.urmstores.com/cash-carry/

Or here: https://www.smartfoodservice.com/locations/store/spokane-573/

Or: Benchmark 40008 Popcorn Portion Pack, For 8 oz Popper (Pack of 24) https://www.amazon.com/dp/B002XSDMUC/ref=cm_sw_r_cp_api_i_M4JaBb3EM5RNX