Mourning Cemetery & Manor have a really good tutorial on how to build a bleeding tombstone. The trick to this one involves two plexiglass blood tanks, the main tank is mounted in the styrofoam base and a secondary tank is mounted above the bullet holes.
A 1/2″ tube feeds the blood from the main tank to the secondary tank, while 1/4″ tubes drain the blood down into the bullet holes. This setup allows for the blood to slowly seep out of the holes rather than flowing out at an unnatural rate.
Items needed to complete this include:
- 1/4″ Plexiglass tanks (width determined by tombstone)
- water pump
- (1) 1/2″ tubing
- (5) 1/4″ tubes
- Plexiglass squares
- Styrofoam tombstone