[David]

As a kid I had a couple of inert WW2 type pineapple grenades. I assume they were real with the powder and detonator removed. I bought them at an army surplus store. They never seemed dangerous to me since I’d had them around for so long but I took one to college as part of an art project. Nothing came of it but the look on the professor’s face showed he had some concern! This was almost 40 years ago. I doubt it would go unnoticed these days.