Some Ideas for Reuse

   Bottle Bowling. Set up bowling pins made from 2-liter soda pop bottles, small bleach bottles, or tall dishwashing detergent bottles. Tip: Put about an inch of sand in the bottom of the bottles; the pins will still be easy to bowl down, but the bottles won't fall as easily as they would if there was no sand in them. 
    

    Putt for Points. Paint five coffee cans with bright colors. Paint or draw a point value on each can. (Suggestions: Paint the number 5 on one can, the number 10 on another, 15 on a third, 20 on a fourth, and 50 on the fifth.) Set up the coffee cans in a row. Give students three golf balls and three chances to accumulate points for their team.

Some other cool ideas for reusing can be found at:

 http://www.dnr.state.wi.us/org/caer/ce/eek/earth/treasure.htm#PREP