I have some engine covers that are polished stainless. By handling etc. some scratches and dulling has taken place. Also, a couple of the pieces have a dragon or flames etched on to them. What can I used to re-polish the stainless and yet leave the etchings? Also, any suggestions as to day-to-day maintenance to keep polished stainless nice and shiny? As for equipment, I do not have a buffing wheel, but have access to an air buffer or good old armstrong.