Created this Lens using a particle emitter script and hand tracking. The particles have colliders and can bounce off each other and inside the glass box. Used the root world physics settings to create the zero-gravity effect. One of my most viewed lenses. Try it out! https://lens.snapchat.com/b1f7b2eb35444bbd8de7a7cf0a7adb2b?sender_web_id=c32dde41-196a-4ae7-ba0d-7b31fd603af1&device_type=desktop&is_copy_url=true