Car pranks?

Question

Ok, a few friends and I have recently started pranking our friends cars...we've gotten them numerous times, doing such things as the classic saran wrapping, and taking random traffic cones off the street and putting them all over the cars...but last night, they did what no one saw coming, and returned the favor to all of our cars, except for mine because i had put my car in the garage last night HA, but I still will not have that...They have started a war, and they don't know what they just got themselves into...

I have MANY, many ideas in mind...but I figure a little input from people on some good ones would be of significant help.

Answer 1

 Duct Tape Prank Not Really All That Funny

A “prankster” who stretched duct tape, sticky side up, across a Forsyth, GA highway apparently caused over $1700.00 to a local woman’s car.  She had to take the car to a repair shop to have the tape removed, and then needed to return to the shop for a major repair caused by the tape.

Read more about it here

tapenews.com/2011/05/04/duct-tape-prank-not-really-all-that-funny/