Heres how you play:
The first person puts the items needed for a plan (things like what, where, when) and the next person guesses what the plan is and puts their own items and place.
Example!
Katie: I need some tape, scissors, yarn, popsicle sticks. Meet me at the craft shop ASAP!
Rust: I didn't know you make homemade hamster toys.
I need blah......
For reals: I need vaseline, plastic forks, 15 rolls of toilet paper, spray paint, and 4 bowling balls. Meet me @ midnight in the alley.