I had a bunch of boxes stored away because I didn't have room to put stuff out. Last summer I was going through boxes and found a bunch of stuff from when my son and daughter were young. My son thought I saved some weird stuff, but also thought it was great to see and loved the memories. One thing was a small box that jewelry come in with cotton in the bottom. He had cut a hole in the lid, I guess making a frame. Anyway, inside was some black stuff. I didn't know what it was, but when he saw it, he was puzzled. All of a sudden he started laughing. When he was young, he had a small motorcycle (Honda 80??). The black stuff is (he kept it) from his first burnout!! He had to admit it was great that I had kept his treasure for him. He has proudly shown it to family and friends.