I prefer land based practical jokes.
I have a roll of police tape that says "Unsafe Vehicle" on it that I am patiently biding my time to use. Have a friend who's scuba-mobile is a hunk of poo. Would love to wrap his vehicle while he is in the water at our local pond.
How awesome would that be?????? You get out of the water and your hunk of c r a p truck has police tape/UNSAFE VEHICLE all over it. Oh, and the cell phone service is very iffy in that park so, calling for help or confirmation may or may not happen. Still wish I had pulled that one in Bonaire........
As far as pranks go.....I prefer to prank friends that I know can take it and will hopefully prank me back. For example, I would never put green food coloring in anyone's boots if I thought they would cry about it. Fortunately, I have lots of friends that don't cry. And as far as safety, hot sauce on a reg is pretty stupid/dangerous. Good common sense goes a long way.
Pranks are not for everyone. But, fake farts are.