Yes, the effect from a thin resonant paper like tracing paper, held or fastened against the teeth of a comb while humming is probably the first budget kazoo. Maybe it preceded the kazoo and was the inspiration for the creation of kazoos. <-(sp kazooes?) I have always found playing the comb to be extremely ticklish on my lips. That may also have been one of the reasons for the development of the kazoo. By keeping the vibrating membrane away from your lips, as a kazoo does, there's less of a chance one would burst out laughing in the middle of a "serious piece" because of the tickling effect on your lips from playing the comb.