Here are some pictures of my recent thermite demo. This one was 1.5 kg iron (III) oxide and 500 g aluminum powder. It was ignited by adding some gummi bears to a puddle of molten potassium chlorate. The pile of potassium chlorate on top of the thermite was melted using a propane torch.
Notice the doomed aluminum cans and the gummi bear below the flower pot.
The stream of molten iron.