Take a plastic bag and lay it flat on the ground. Make sure you get all the air out.
Step 2
Fold bag in half and then in half again.
Step 3
Cut off bottom of bag and handles. Cut bag into approximately one inch strips.
Step 4
You should have a bunch of strips that look like this.
Step 5
This part is kind of hard to explain with a picture, but I'll try...
Pull apart all of the little pieces that you cut and overlap two pieces and pull to chain them together.
Step 6
You should pull so that you end up with a tight knot.
Step 7
After stringing a few bags together you will have a really long string of plastic yarn.
Step 8
Roll plastic yarn into a ball and start crocheting! You can treat this just as you would any other yarn.
It wouldn't be as thick, but I found a tute on making a pillowcase into one long continuous "yarn"... it would work for a plastic bag, too... I should try it and post it as a version.
thanks!