Article Title: TSA Week in Review: 30 Loaded Firearms, Smoke Grenade, Machete, and More
Snippet of Article: "...We continue to find inert grenades and other weaponry on a weekly basis. Please keep in mind that if an item looks like a real bomb, grenade, mine, etc., it is prohibited. When these items are found at a checkpoint or in checked baggage, they can cause significant delays because the explosives detection professionals must respond to resolve the alarm. Even if they are novelty items, you are prohibited from bringing them on the aircraft. Read here on why inert items cause problems...."
Source: tsa.gov