[IKE]

Go to instructables.com greek football.

It shows the best way to make these. I made 2 polycarbonate ones with Rookie team in about 15 minutes this morning.

The basic instructions are:
Find 6 straps.
Turn 1 into a hoop.
Make the other 5 into a star pattern. Keep rearranging it until the straps alternate over under for every intersection and form a small pentagon surrounded by triangles.
Then tape the pentagon down to hold it in place.
Next step is raise the underside straps and insert them into the hoop. This will form the bottom of the ball.
Next alternate the straps in order to incapsulate the premade hoop.
Last step is to join the hoops one at a time. Make sure that as you continue conecting straps, they follow the over under pattern.

Once you get the hang of it, the weaving part goes really fast.