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Signing UpStep 1Supplies
2. 12v DC adapter (or 2 9v batteries, with connectors)
3. 1ft (30cm) of 2.75in (5cm) cardboard tubing*
4. 2 large (or small) CPU cooling fans**
5. Dryer sheets
6. 2 rubber bands
Tools:
1. Pair of scissors
2. Duct tape
*You can also use a paper towel roll
**The large CPU fan can be supplemented with the smaller type
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