I have thought about doing this before, and have done it on the cooking grates. Would you do this on the smoker itself. I would wonder about rust, especially on the firebox. Would you just oil it really well? Would it take the seasoning of the inside of the smoke box? I may try it on one and see what happens.
2 NB Banderas, Imperial Kamado #5, Imperial Kamado #0, Large Grill Dome, Large Primo Kamado, 22.5 Weber Silver, 18.5 Weber Silver