Go to a mental institution. Have a lengthy discussion about potatoes with the clerk. If, at any time, does the clerk mention something that would warrant the phrase "POH-TAY-TO POH-TAH-TO", then scream "POH-TAY-TO POH-TAH-TO!"
You will wake up the next day with a pohtayto in your hand.
This pohtahto is Object Two Three Four Six of Two Thousand, Five Hundred and Thirty Eight. One man's trash is another man's treasure.