Airblown Floating Sphere

This is a simple toy that can float a small ball by blowing it hard (not sure if a kid could do it). It's fully 3D printed, including the ball, no assembly required, but you need to remove some supports after printing.The original STL file is not the actual printing size. After testing, the blowing device needs to be enlarged to 150mm and the ball needs to be enlarged to 26mm.Printing the ball was a difficult task. I adjusted the size several times to find the appropriate weight. I also used single wall, so the printing speed also needed to be optimized well. Finally, I got a relatively perfect ball.You could also change the colors by height to get a colorful blowing device and balls.