Step 1: Materials
Plastic bags. I am not sure how many bags I used but it was probably around 20.
I had some different colors of bags, the green bags were from newspaper delivery on rainy days. The pink ones were from a charity donation bag. There are also many white bags used which you don't see, for the vertical pieces of the basket.
Needle and thread- a few steps will use hand sewing
Iron- for the fused plastic
Glue- (I used silicone construction adhesive)
Preparing your materials:
This bag uses two types of recycled plastic: fused plastic and "plarn". (plastic yarn)
For how to make fused plastic, see my tutorial here: http://www.instructables.com/id/Fusing-Plastic-Bags-the-eclipse-way/
For how to make Plarn, see this tutorial: http://www.instructables.com/id/How-to-Make-Plarn-Plastic-Bag-Yarn-For-Knitting-/
It's basically just long thin strips joined together.
Step 2: Making the base
Cut one piece into the desired shape and size for your basket bottom. I chose to make an oval, but you could easily do a circle or a square. My oval is about 11 inches long and 7 inches wide.
Next, fuse another sheet of plastic, 6 or 8 ply.
Cut some strips that are twice as long as you want your finished basket height.
So for example if I want the sides to be 4 inches high, I cut the strips 8 inches long. The width is about 1/2 inch to 3/4 inch. it's OK if they are not exactly the same width, but they should be close.
You will need enough of the long strips to go around the circumference of the bottom.
Note: You should have an ODD number of strips.