In response to the overwhelming demand (Okay, 3 comments–w00t!), here are the supplies I included in each of the Mystery Maker Bags.

Mystery Maker Bag Challenge
World’s Slowest Marble Coaster
Using the materials in the bag, create a marble roller coaster that takes as long as possible to get from the top of a table to the floor. If yours takes longer than 15 seconds, you are an engineering genius!

Materials: paper of different sizes; paper towel or toilet tissue tubes; marble; tape; scissors

Mystery Maker Bag Challenge
Never Underestimate the Power of the Gumdrop
Using only gumdrops and toothpicks, create a structure that can hold a textbook at least 6 inches off the ground for at least 1 minute. Feeling confident? How about 12 inches? How about 2 textbooks?

Materials: bag of gumdrops; at least 100 toothpicks; standard-sized textbook

Mystery Maker Bag Challenge
Foiled Again!
Using only the piece of foil included, create a boat that will stay afloat with as many pennies as possible. How much treasure will your boat float? 10¢? 25¢? A dollar?

Materials: 10″ x 10″ square piece of aluminum foil; couple of dollars worth of pennies, kiddie pool or sink filled w/water

Mystery Maker Bag Challenge
One Small Step for Man…
Using the materials in the bag, paper rocket that will go as far on a breath as you possibly can. Feel free to customize the design. Does the shape affect the distance? Would adding extra features, like fins help?

Materials: paper; cardboard index cards; tape; soda straw; scissors

Mystery Maker Bag Challenge
Beware the Bridge to Nowhere!
Using the materials in the bag, create a platform that extends out as far as possible from the edge of a table or chair. The catch? There can be no supports or other parts of the platform touching the ground. If you’ve ever seen the Grand Canyon skywalk, you will get the basic idea!

Materials: newspaper; miscellaneous types/sizes paper; tape; cotton or nylon twine

Mystery Maker Bag Challenge
A Bridge over Troubled Waters
Using only straws and pins, build a bridge that can hold as much weight as possible without collapsing. To test the bridge, use the cup and add a few pennies at a time. Don’t look down!

Materials: standard soda straws; box or pincushion and straightpins

Mystery Maker Bag Challenge
Ping Pong Zip Along
Using the materials in your bag, create a way to transport a ping-pong ball safely to the end of a zip line. If the ping pong ball falls or gets stuck, it’s game, set, and match!

Materials: cotton/nylon string or dental floss; ping pong ball; tape; paper clips; index cards

Mystery Maker Bag Challenge
The Paper Elevator
Using nothing but paper and tape, create a structure that will hold a textbook at least 12 inches off the ground. Can you achieve this using the fewest pieces of paper necessary? How about TWO textbooks, smarty?

Materials: standard copier paper; clear tape; textbook

Mystery Maker Bag Challenge
Paper Helicopter
Using the materials inside your bag, create a helicopter that will fall to the ground as sloooooowly as possible. Make that landing as soft as possible!

Materials: copier paper; 2 index cards; scissors; tape; paperclip

Mystery Maker Bag Challenge
Launch Catapults!
Using the materials in the bag, create a catapult that can launch a pom-pom as far as you possibly can. Want an extra challenge? Try making the pom-pom hit a target or land in a specific place!

Materials: plastic cup, plastic spoons (2), rubber bands, pom-poms, craft sticks, index cards, scissors

Added this year:

Mystery Maker Bag Challenge
Don’t Break the Chain

Use the materials in your bag to create the longest chain you can that can support the weight of the included “cargo bag.”

Materials: construction paper, scissors, tape, cargo bags (zippered freezer bag with golf balls, coins, or other similar objects for mass, paperclip opened up and pushed through thick part of zipper for hanging onto chain)

Mystery Maker Bag Challenge
Tower of Power

Using only what is in the bag, create the tallest free-standing tower you can.

Materials: 20-25 sheets paper, tape

TIP: Schools throw out a LOT of printed-on paper. Instead of using blank paper in some of these projects, hit up the recycling bins and put the used to good re-use!