Comb Kazoo: Fold the wax paper in half and place the folded seam over the exposed teeth of the comb, approximately in the center. There should be one layer of wax paper on each side of the comb, with the ends of the paper extending to the comb bottom.
Place dry lips against the wax paper and hum to produce sound. A little experimentation will different humming sounds may be necessary, such as “mmm” or “dooo” sounds.
See the webpage below for more detailed instructions on the Comb Kazoo