Question: How do you scare your sister with green army men?
Options:
Take one and gently cut it's head off.  Fill the cavity with ketchup and glue the head back on.  Line them up in your backyard and shoot them with a BB gun.
Take one and gently cut it's head off.  Fill the cavity with mayonnaise and glue the head back on.  Line them up in your backyard and shoot them with a BB gun.
Answer: Take one and gently cut it's head off.  Fill the cavity with ketchup and glue the head back on.  Line them up in your backyard and shoot them with a BB gun.