Step 1Materials
- Polypropylene plastic sheet, approximately 0.5mm thick. If you wish to adhere to redesign principles, I got mine from a marbig folder that had split along a seam- you can use any brand or translucent colour that has a flat section larger than 23cm x 26cm.
NOTE: It's important that the plastic is PP as it has 'living hinge' fold characteristics that allow it to be continuously bent without eventually snapping. Check the recycling code - it should have a 5 in the middle of the recycle symbol, and PP underneath it. If you can't, try going to: http://www.modernplastics.com/how_to_identify_plastics.htm
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http://www.hpakids.org/holistic-health/articles/108/1/Plastic-Water-Bottles
That said, I am really impressed with your design. Good work!