Melting lead? How about a chemistry set with mercury and lead in them? I got it for Christmas...my brother got an electronic set from Radio Shack the same year... and we try to see what lead mercury and electronics can do together...
Burned my hand a few times on this.
LOL. Forgot about the mercury. We had “tons” of it. We’d get it from the old thermostats and the old McDonnel/Miller low water cut offs from the steam boilers. They had a huge glass vial filled with “quick silver” on them.
Made our own hydrogen with some softener salt, a battery and a piece of copper tubing.
Then there was the fun with Estes rocket engines, bamboo garden rods and cannon fuse for industrial sized bottle rockets.
Then there was anything fire related. Homemade Napalm, etc.
Don’t know how I’m still around. (grin)