Early summer is the best time to make a squash horn. You can use stems of zucchini or summer squash. Cut a stem close to the base of the plant.
I was hoping to find a straight stem, but the curved ones work fine, too. Now cut off the leaf, but don't cut off the solid end of the stem. You only want it hollow on the large end.
Use a knife or a vegetable peeler to gently scrape off the prickles.
Cut a slit in one side of the hollow stem close to the solid end. It should be about 1 inch long.
Now put the slit end in your mouth and blow very hard. You may have to widen the slit the tiniest bit if you have trouble getting air into the horn.
We experimented with shortening the length of the horn for different sounds. Now, get a few friends and a few more stems and start your own squash band!
I adapted instructions on how to make a squash horn from a book called "Log Cabin Cooking: Pioneer Recipes and Food Lore," by Barbara Sewell.