I thought it would be creative to make a device that could connect to a computer that could give the computer the ability to draw using sound waves. Low frequency waves would produce thin marks and high frequency sound waves would produce thick marks. There would be separated blow holes for each direction you wanted the pencil to go in. For example there would be a blow hole for when you wanted to draw left ,right, up, down, diagonal left and diagonal right. If you were to yell into the blow hole (or whisper) the machine would pick up the sound waves going into that hole ALONE and the pencil tool in the computer would draw for you.
The computer would be surrounded by pipes that are connected to it, so the user could blow into them and create ART!