I upcycled pet food bags into rain gear. Jackets, shorts with waterproof bottoms and hats. Had a blast. In addition to the pet food bags I used recycled bike tubes in place of the elastic in the shorts, which were made from upcycled old curtains. I save everything you can think of so I had a ton of salvaged backpack buckles I used, waist bands from clothing I had upcycled in previous projects, a bottle cap became a button, recycled collars and zippers from old clothing.
I used the bags inside out for the main pieces of the garments. This gave my garments a clean white slate for creativity. I then was able to cut out the advertisement pieces that I really liked, creating appliques with the printed parts of the pet food bags. Pockets where made, waistbands, and other pieces of the garments in coordinating colors all from the pet food bags. And because function was important too, I added socks to the inside front panels creating sleeves to hold cellphones. :) Who goes anywhere without their phone?