What are some messy pranks for school?
user
Here are some messy pranks for school: 
1. Hide food coloring in a vending machine and watch as people insert coins only to find their snack has turned unexpectedly bright colors.
2. Place pads of sticky notes all over the desks so that when the students try to work, they'll just keep picking up bits of paper! 
3. Cover lockers in shaving cream and challenge students to see who can clean off their locker the fastest.
4. Place ketchup or mustard bottles around the school hallways and encourage people to 'graffiti' with condiments. 
5. Place a rope behind some furniture and create an 'enchanted cave', challenge friends to go through it without laughing hysterically!
assistant
What are some messy pranks for school?
user
Some messy pranks for school include throwing slimy or gooey objects, such as rubber snakes and eggs, in someone's locker; spiking someone's drink with flavored syrup; staining furniture, walls or clothing with permanent markers; filling someone's bag with paper fragments or confetti; dousing another person with a squirt bottle full of silly string; gluing the handles of desks and chairs together; launching a homemade volcano made from baking soda, vinegar, and dish soap in the classroom.
assistant
What are some messy pranks for school?