Here's a 2008 video of NYC's legendary Union Square potato-peeler salesman, Manchester-born Joe Ades, the Gentleman Peeler, whose patter was as smooth as the carrot slices he produced with his sharp little gadgets. He died in 2009, the day after he was notified that he had attained American citizenship. He modelled himself after "the patterer," the well-dressed salesman that were written about in Henry Mayhew's classic London Labour and the London Poor (this book also inspired Terry Pratchett's brilliant standalone novel Dodger).
If you regret not buying a peeler from Joe when you had the chance, here's the same "machine", though the price has doubled since Joe's day.