From the New York Times comes word of this charming-bordering-on-twee way of getting pizza delivery in Paris:
By the water, there is a small pink dot of a helium balloon, bobbing in the intermittent breeze. The balloon is key. It was given to you by Pink Flamingo, a pizza parlor down the nearby Rue Bichat, whose bicycle deliveryman will use it as a beacon to locate you and present the five pies you've ordered (10.50 to 16 euros each). They're not all for you, of course—you've got friends to help eat the pizza and drink the four bottles of red wine (40 euros) you picked up from Le Verre Volé, a wine bar across the canal.
Maybe some enterprising pizzeria will set this up in NYC.
The place in question apparently has "quirky toppings": goat cheese and sliced duck breast, and an "Obama" pizza with bacon and pineapple.