I was watching an old newsreel, about some hero being honored with the “tickertape” parade in NYC. Apparently, it was considered an honor to dump tons of old paper tape into the streets, while the hero’s motocade passed. My question; stock tickertapes haven’t been use for what-maybe 30 years? So, if we had to stage a tickertape parade today-what would be dumped out of office windows?
Plus, how long did it take to clean the streets after one of these spectacles?
The most recent parade was held for the Giants on Feb. 5 this year, on the occasion of their winning the Super Bowl. How could you miss it? 
This bit from the New York Times says that around 50 tons of confetti and shredded newspaper was going to be used, and that the sanitation department would have pretty much everything cleaned up by midnight that night (the parade started around noonish with the City Hall ceremony at 1 pm).
Oops, sorry, the parade started around 11 am. Here’s another NYT blog entry about the parade.
Shredders are ubiquitous in offices…and the cross-cut ones make nice confetti. I should know; I once dropped my full shredder bin while trying to empty it. It was not a pretty sight. 
Gwowing up in Sydney in the 70s/80s, I thought of them as a WWII era thing. Quaint and old fashioned. Then, there was a resurgence in the 90s and early 2000s for returning victorious national sporting teams and the like. Seems to have subsequently died down again though (either that or we just haven’t won as much stuff).
And slightly off-topic:
Skywriting was, as a kid, a thing my parents talked about from the dark ages of the 50s or thereabouts. Motorcycle sidecars were another. Now, both are common again.
Another modern-day problem (aside from the absence of actual ticker tape) is the fact that most office windows don’t open anymore.
Perhaps the OP was interested int he last parade to use actual ticker tape - and since stock brockers dont use ticker tape any more, this answer requires a bit more leg work…
Related question: suppose I was a stockbroker and wanted to be ornery. If I had a ticker tape machine would I be able to hook it up somehow and get the old fashioned readouts like before?
Well, since the OP specifically said
I think it’s fair to say the original question has been answered. This article on Wikipedia says that ticker tape machines themselves became obsolete in the 1960s, so I would guess that one of the surprisingly large number of ticker tape parades in that decade was the last to use actual ticker tape, at least in NYC.
The old technology relied on an analog signal relayed over telephone/telegraph wires to the machine, which would then print at a speed of one character per second. Seems you’d need either a way to convert something like a digital RSS feed to a (much slower) analog signal to go into the machine, or else modify the machine so that it could accept a digital signal… but then it would probably sound like a mini jackhammer for printing so fast, right before it flew apart under the strain. 
Couldn’t you just rig up a tickertape style printer to a Bloomberg machine?
During the 1960s, 1970s, and 1980s it was common to use the “chads” punched out of computer card by the IBM card-punch machines. They had plenty of them, because of all the computer cards used back then (also the circles punched out of computer tape), and the stuff really wasn’t good for anything else besides recycling.
Nowadays, of course, we neither have ticker tape nor computer punches, so I guess shredded documents, as noted above, will have to do.