Go for it. One stage I built for the Golden Gate match named "The Rock" after the movie & Alcatraz prison had an electric chair, water balloons, and a functional lawn sprinkler/decontamination shower.
Way back in the day, right after the first RoboCop movie I built a stage with a female hostage that required that you knock down a popper by shooting between the hostage's legs just like RoboCop shot the bad guy in the .... movie.
I used an old Tee shirt for the hostage's skirt as soft cover (just like in the movie) and to make sure that everyone knew it was a female hostage I used another Tee shirt with a pair of balloons underneath. What I didn't tell anyone, the balloons were partially filled with cranberry juice.
You guessed it, a wiseacre shot the balloons. The reaction was priceless.
I've thought about making bleeding no-shoots by glueing ketchup packets to a no-shoot then painting the whole thing white or covering it with a sheet of white paper.
But then everyone knows I ain't politically correct or even correct most of the time.
Funny, could never get away with it here but very funny.