I had one for breakfast today that was garnished with the traditional celery and lemon wedge, but also an artichoke wedge (canned/blah) & a whole piece of pickled okra (nice surprise).
My favorite Bloody Mary was from a bar in New Orleans called Molly's and included one green and one black olive, one each lemon and lime wedge, sprinkle of Old Bay, and 1 Tabasco brand pickled green bean. Sounds like too much going on but it just worked.
Also love the Bloody Mariko from a sake bar called Decibel--here in NYC--garnished with seasoned black & white sesame seeds! Love the crunch. Another place (called Verlaine) has a Vietnamese version (sriraicha and ginger) garnished with cucumber sticks. Once again, love the crunch!
All of a sudden I'm interested to know what other variations are out there. My new weekend work schedule is crazy and a nice beverage break could salvage my summer.