Here is a link to a past blog DIY post on fusing plastic bags.
Here is a link to past fused bag blog posts.
Hopefully tonight or tomorrow I'll have the video from the show on my youtube channel.
If you have any questions on how to fuse plastic bags, please feel free to ask. A good tip is to fuse 2 layers at a time. You should fuse at least 4 layers of plastic together for a sturdy new fabric.
Martha Stewart also showed how to fuse plastic bags on her show. They made a holder for doggie poopie bags.