I created this tutorial to create a splatter effect on fabric. I used red paint to create a blood splatter effect, but it dried pinkish, If you try this, be sure to use a bright red, and about 1.5 tbs of paint per 5 inches of water
I got my spray bottle at the dollar tree, and for plastic I used grocery bags. It worked really great! This is *by far* the easiest, and cleanest, dying method I have ever used. I also tried making some fabric more solidly colored by misting it, and it turned out great! Anyone who has ever gotten acrylic paint on their clothes knows that this is NOT coming out. The only downside is that the paint makes your fabric feel a little stiff, but for my projects this isn't an issue.
And I guess I should mention that I used cotton fabric.