Cause what safer way could you do it than with safty pins?
Actually about half-way through this I realized it was probably dangerous having even closed pins near my eye, so DON'T try this at home, kids.
That being said, however, I'm still happy with it. (even though you can't see all the safty pins so well here.)
Done with: Little bit of liquid latex, geletin, corn flakes, food dye, etc