Construction Tip. For you gourd guys, if you're tired of rubbing the top of your gourd on sandpaper, try this. (see the photo) It's a 12 inch sanding disc attached to an old washing machine motor in a box. It flattens the top of the gourd in about one minute. Another tip, never press your gourd on a belt sander, it'll fling it in 3 pieces into the next county.