I have an old Dracula tombstone I made and decided it would be much cooler if it bled. LOL. I have this old working tabletop fountain pump and thought I could rig up some aquarium tubing to some holes in the tombstone, that would allow the "blood" to drip/ooze down the front and be collected in like a hidden trough where the pump was hidden. Then it just circulates over and over. I know it'll work, just might take some tinkering. What I want to know is ..... does anyone have some suggestions for blood? Food coloring in water is too fluid and washed out... the "blood" has to be something that won't clog the pump or tubing.