I've often said you're a magician with shaving foam, and now you're giving us your secrets! I don't know if I'll get results as good as yours (is there anything you can't make out of that stuff?) but it's going to be a lot of fun trying.
For what it's worth, the (canned) shaving foam I like to use the best is Asda's own brand (not the smartprice one, the one that comes in stonking big green cans), I haven't found a brand to match it in terms of thick, creamy foam that lasts (it doesn't burn either like some brands do).
