Reusable Pipe Cleaner, BERT

Originally designed to clean the long borosilicate glass tubes from Airizer Solo 2, but can be modified to make a cleaner for any size bore.

I printed at 60% to fit the Solo 2.

To use: slide a piece of paper towel into the jaws, so that BERT holds the middle. It will look kind of like bow tie pasta. Stick the paper towel ends into the tube first so they can cram into the corners, then use BERT to push it down and twist around. Pull back out, and you're clean.