After a recent trip to Zambia, my church returned with various "souvenirs". One of them being a "soccer ball" the kids kicked around. This Instructable is a variant on their design.

Feel free to vote too! :D

Step 1: Gather Your Materials

You'll need a half sheet of poster board, tape and 5 plastic bags (obtain from your local Target or Walmart).

Step 2: Fold Your Poster Board Into a Ball

Simple, roll it up like your balling up a piece of paper.

Step 3: Package the Paper

Place your ball in a bag.

Step 4: Tuck the Bag

Slide the paper into the corner of the bag and twist it two to three times.
Then place the twisted end into the top of the same bag (see picture 2)
Tuck one handle in the bag, and lift the other over and around the ball shape.

Step 5: Repeat Step 4 With Every Bag

You want to repeat Step 4 until you use your last bag, or until the handle fits tightly around the ball itself. (Tightly being no more than one finger will fit into the space between the handle and the ball.)

Step 6: Tape It Up

Run a cross of tape around the ball to hold it tight.

Step 7: Goof Off

Finished! You're now playing soccer with what many orphanages in Africa use. My friends and I actually use these for indoor dodgeball, paintball targets, enlarged hackey sack. Use your imagination!
Thanks for reading!

Step 8: This Section for the Contest (Please Read and If You Like, Vote)

After talking with my friends for a little bit, I've some to the best way to utilize this ball in a sport.
Think, Ultimate Frisbee, meets Juggling, meets Hackey Sack.
You've got Plastic Bag Shots!

Simple, Team A is attempting to get the ball into Team B's net, and vice versa.
Best played on half a soccer field, the rules are.
1. Ball must not touch the ground, or it's a turn over.
2. Ball must not be touched with your hands, everywhere else is fine, except wrists down.
3. No goalies, and while we're at it, no contact. Don't go kicking the ball off your friend's chest, it happened to us.
4. Stalls are allowed, and encouraged. Nothing is funnier than seeing your friend hop across the field, one foot glued to his butt and the ball.

Tips:
Try to volley, one touch a player goes a long way, and will take you down the field fast.
Don't feel obligated to be a professional at this. Nobody is, just go out there and have fun kicking the ball towards a net.
Number one tip, make your own rules. Ours' are guidelines, but feel free to add even better ones. (i.e. Blindfold a player and let him be goalie. Blindfold all the players. Tie together all your players at the wrist.) Go crazy with them!

Have fun, and please give me your votes!!
Thanks!