I'll ask at the viewing party on Saturday. I can definitely arrange it if permitted, though I would guess the best they would permit would be a smoke machine.
The atmosphere is already great at the games, adding the green smoke will take it to another level!! Where would you get them ?
if we got permission to use smoke bombs I could track some down, it's not too difficult btw found this thread about the Union supporters from 3 years ago: https://www.bigsoccer.com/community/threads/smoke-bombs-and-flares-at-ppl-park.1449680/