Like others who have already posted, I have had same-rank quads back to back once, and two royals on a single-line machine about 15 minutes apart.
But the one that stands out in my mind wasn't really a "hit" at all. Playing a single-line machine, I was dealt a hand where the choices were a lone ace, AH unsuited, and a SF3-2. I made the hold, drew, and hit the deal button again. I got the exact same five cards in the exact same order - a one in 311,875,200 shot. I did a double take and made the same hold. The draw cards were different the second time. Neither hand's result was memorable.
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