I used this great template to put something together.
Due to all the dead links, I couldn't tell if people had already done something similar.
I used the tilemap as a mask for an image using a new effect which put a color key where the tilemap was transparent and the image where the tilemap tile was present. To add back a 'background' behind the image, I added another image on 'top' which used the color-key as a kind of inverse chroma key. This way we can a get a pixel-accurate image destructible.
I know this might have already been done, but it was fun for me to try it based on the original template, thanks for sharing it!