From the page: A PET bottle holds more value than it seems
Idea 6
Piggy bank or zipper pouch
Turning bottles into utility items is one of the oldest techniques in modern crafting, popularized at fairs and school workshops. It works because PET is rigid, lightweight, and accepts stitching with wire or waxed thread — a zipper sewn directly onto the plastic creates a flexible and secure opening without needing complex molds.
What you need
- 1 or 2 clean, dry 2-liter PET bottles
- 1 zipper, 8 to 12 inches (it can come from an old garment)
- Strong thread (nylon or waxed thread) and a thick needle
- A punch or hot nail to open the holes
- Strong scissors
- Colorful adhesive tape, fabric, or spray paint for finishing
How to make it
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1
Cut the bottom of one bottle about 3–4 inches tall, and from the other, a piece of the same height — the curved bottom will be the base, which distributes weight and gives stability to the piece.
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2
With the hot nail or punch, open evenly spaced little holes along the top edges of the two parts, about 5 mm from the edge — the holes guide the stitching and keep the plastic from tearing.
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3
Join the two halves by sewing the zipper between them: one edge of the zipper on each half, sewing from the inside so the stitches stay hidden — this gives a nice finish and keeps the zipper running smoothly.
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4
Close the sides with the same stitching, nice and firm, so the structure doesn't open under the weight of what you store.
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5
Cover the cut edges with colorful adhesive tape or glued fabric strips — besides giving a finish, it protects against the sharp corners of the plastic.
Finishing touches
Paint the inside with spray paint for a solid, uniform look, or cover it with a torn pair of tights for an all-soft "fabric" effect. Make two different sizes and stack them as an organizer set.
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