Trawling through some of the websites I noticed some targets that give some sort of effect when shot be it some sort of noise / smoke / flash or clear breaking effect.

This set me thinking as to whether anyone has any good ideas for home made targets to shoot at that would give a similar effect, basically biscuits would be ideal (but I don't want to get into an internal discussion as to whether I should be eating or shooting the biscuits).

So does anyone have any sort of "recipes" for something I could make that I can shoot to break?

Think the only caveats are cheap to make, environmentally friendly i.e. I can leave it in the garden afterwards and if its something that the wife can make for me then even better!!