Put a rubber band around the sprayer in the kitchen sink. When she turns the water on, she'll scream and flap her hands around while standing there getting soaked rather than just turning the water off right away. Hey, worked for me in 1987! :laugh: (Mom's too old for adrenaline-pumping practical jokes nowadays! :scream: )
Instead of a rubberband just stick a cup behind it. You'll get her, but tomorrow you can put the cup there again, in addition to a piece of electrical tape. Hopefully for round 2, she will remove the cup, think she caught the gag, and get sprayed one more time. :)
How bout getting some of that temporary hair coloring from the barber shop/salon. Ya know, the stuff that makes the punkers hair green for a few days. Empty her shampoo bottle and put a couple bottles of this stuff in the bottle instead. She won't even know what happened until she starts to rinse!!
Oh, don't forget about the ever popular yet easy...
Chocolate EX-LAX brownies!!! Great fun!! :uh:
The hard boiled eggs stench trick. Hard boil about 10 eggs and hide them around the house where they can't be seen. Under beds, behind tv's, in the heater/ac vents. In about a week the stench will be absolutely unbearable!