Here are pictures and videos from people like you launching air rockets. If you send some of yours, I will post them here.
John Biegun, Science Teacher
John Biegun is the science teacher I wish I’d had. Among the many projects (check out his channel) are air rockets.
Rick Ramsey and his Science Club
Teacher Rick Ramsey sent me this photo from his science club: a rocket caught just after launch and still in the frame!
Matt Navia and his son William
Here's another picture with the rocket launched but still in the frame, sent by Matt Naiva upon his son William's birthday party.