Title: Bull-ish Thugs
Location: Bull Arena or rodeo in some ranch somewhere
Description: Someone dresses up as a woman while two others are dressed up as robbers in prison attire. From there you act out some sort of play in which the robbers steal the woman's purse and the woman begins to shout and scream for help. Here is where you cue the bull. Where the bull makes his entrance and knocks the heck out of the robbers after which the lady will retrieve her purse and thank her savior with a smack on the butt, then run like hell before the bull flips her over.
Title: Girls Day Out
Location: Rodeo again
Description: About the same as the first prank but this time you set up a table with coffee and cookies and all the members of the jackass crew sit at the table in drag talking about how their day went. Cue the bull which drives the crew out of the arena one by one. The last person driven out of the arena is the winner and the losers have to drink a cup of bull piss or drink milk straight from a cow's udder, you decide which way is raunchier and funnier.
It says to submit a prank but I'll give you three and let you choose from there.
Can't limit a person's creative juices.