Ask Tom Noddy, The Bubble Man, he can make squares and blow smoke into them. It is amazing to see him do that live. He also makes a carousel bubble that is fantastic. He is on youtube check him out!
Are soap bubbles good for anything but a bath
Soap Bubbles are basically a thin film of soap water in the form of a sphere. They are mostly used in a bath. But they are often used in artistic performances in different parts of the world. They can also help in solving complex mathematical problems of space. For details see the link below: