We had thought about tossing candy, gently LOL, from the cart. Then forgot to buy some.
When we registered our cart at the bike barn they gave us a big white card with a number on it. On the back were instructions, one being not to throw anything from from the cart.
When I was a kid I'd of said BRING IT! Just so kids don't run into the path of traffic. Maybe it has been a problem. Glad you had a blast at the parade!