Chicom Grenade. - Similar to the German "Potato Masher" grenade.  It usually had a bamboo handle with a wooden screw cap on the end attached to a friction fuse running down the middle.  They were crude, but effective. I woke up one morning to find one lying next to my head.  It was thrown in a brief perimeter disturbance during the night, which I had not gotten up to investigate, but since it was raining the fuse had gotten wet and it failed to ignite.