What interesting thing can I do with some strong cardboard tubing? Besides mail posters or build a telescope? I have 3 pieces between 2-3 feet each and 3” inner diameter. It was a single large 7 foot tube I broke up to recycle but now I feel like I should do something with them
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Let me know if you find out, I have had a few of them sitting in the corner of the lab since April
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These are quite hard to cut too. I used a box cutter but probably need a hack saw for serious resizing

