Gender reveal cannons

Er

Hey mamas! I want to do a photo shoot gender reveal-using the cannons you can buy off Etsy or amazon. Our back yard has a grill and vegetable gardens and a play set. So we want to go to a park or somewhere pretty. How quickly does the confetti dissolve? Or do you think we’d have to pick it up by hand? I don’t want to leave a mess at the park-Thanks! Here’s our announcement for fun!