To start off, decide how long you want your mobile to hang down. I used three JBS chipboard butterflies for mine. Decorate them as you wish. Take your hole punch or awl and punch small holes at the TOP and the BOTTOM of the chipboard shapes. Your sewing thread will be going through this.
After the string is attached to the first piece of chipboard, thread some buttons onto the string. Doesn't matter what size or color, just choose to your liking! After threading your number of choice of buttons, thread on the next piece of chipboard to be hanging in the mobile, and continue in the same process adding buttons and chipboard.When you come to the end of the string, you can just tie on another button or embellishment of your choice and you have just created your very own mobile.