TREASURE HUNT Great for sweet 16 This is a good one, but must be planned out carefully. you will need a couple of things for this, one a separate car, an imagination, helium filled balloons all of one color and cards. A cell phone helps too, but not mandatory. Have a few of their friends stay the night.  Set an alarm or something to wake them up at a time when you are all ready. Have a balloon, their favorite color, with a card attached. The card should give them a clue where to find the next clue, such as, Happy Birthday, your party you have to find, the place to start is where you are taught, body and mind.  Have another balloon same color waiting at their school with another card attached.  Continue to give clues  driving all over town. Parks, Grandmas house, favorite stores, friends houses, then finally give them a clue to meet at their favorite restaurant.  If you choose to have your child go to friends houses, and grandma's house, make sure that the other people know not to keep the kids long and after the kids leave for them to meet you at the restaurant and make sure that they won't tell the kids where you are, or where they are going. Have the party ready to go as soon as they get there.  This is great fun for you and for them.  The anticipation builds pretty high.