Our Army man wars were epic. This was in the late 1960's early 70's and most of us had collections running into the hundreds. We'd spend hours setting them up in little bunkers and trenches in the dirt, then we'd take turns tossing rocks and wiping them out in a massive rock artillery barrage (we'd add the appropriate sound effects verbally). Last one with troops still standing wins.
As we grew older we'd build ship models adding stones as ballast and firecrackers into the hulls. We'd anchor them in a small pond and flick lit matches at them until they'd catch fire and eventually explode into pieces once the flames reached the "magazine".
Hollywood special effects had nothing on our youthful imaginations...