Interesting reading about the spaghetti weevil (LOL).
Assorted (sordid) April Fool's jokes (or other practical jokes):
1. Really early in the morning when no one else was awake, flushing the toilet and yelling "Mom! Dad! The toilet's overflowing." (not funny)
2. Adding large amounts of green food coloring to a gallon of milk. Not good. I had to drink the whole thing and green milk on oatmeal isn't the greatest.
3. Filling an office up with air-filled and helium balloons for a birthday (a roughly 2-foot gap was there but the rest was filled). VERY well received by my then boss.
4. Rigging up a string to which made it so that when my sister tried to open the door to sneak out and look at the Christmas presents early (I always got caught for doing this) the string pulled against another door preventing her from leaving. (Not well received, she CLAIMED that she had to go to the bathroom in the middle of the night and woke up my parents to do so).
5. Rigging up a mouse trap on the top shelf of a school locker such that, when the locker was opened it triggered the trap. The trap had a piece of cardboard loaded with confetti on it which then covered the victim.
6. Filling up a school locker with plastic packing peanuts.

Many, many more!