Someone recently contacted me and asked "Are you still blowing things up and destroying them? Because I have an old film camera and a lens full of fungus that I will throw away otherwise".
How could I turn him down? After it arrived I packed it full of Potassium Nitrate and sugar with a little baby oil to slow things down and add to the smoke. I installed a "ground spinner" from some fireworks I bought to ignite the mixture but it didn't light properly so I had to open the back again and do things "manually". Unfortunately I couldn't get the door closed again so it didn't turn out so well.
Excuse the blurry video, I also didn't set the focus properly but I do have another old film body lying around somewhere .....
Here are a few photos.