1. A Shofar Is the Horn of an Animal. Many animals have horns, made of keratin, which can be hollowed out by removing the bone and tissue found inside. When the tips of the horns are either removed or drilled through, a sound can be produced. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.