Let's face it: there are times during a campaign when things get set on fire. From that pesky dragon to the nervous wizard to perhaps a commoner and an ill-advised use of alchemists fire, squares on the board, NPCs, or objects at various point are considered flammable.

Sometimes it's annoying to have to remember what's on fire and what isn't. Well, not anymore! :-)

1. super important: if you use acrylic, do not remove the backing paper. This matters for step 3.
2. cut it (this example uses orange acrylic-- thickness doesn't matter, although it's easier to play with if it's thinner)
3. spray paint the etched portions. I used two coats of black spray paint. This is why you want to leave the backing paper on-- it's the ultimate stencil.
4. allow paint to dry.
5. carefully peel off the backing paper, leaving the etched portions coated in paint.
6. enjoy.