Building tube wall
Notes: Plastic types for toys: http://www.pvcinformation.org/assets/pdf/PlasticSubstitutesPVCtoys_Tickner.pdf Best to worst: 5. Bio-based (cellulose, etc) 4. Polyethylene and Polypropylene 3. PET 2. Polycarbonate, ABS, Polystyrene, Polyurethane 1. PVC (worst) Magnetic tubes Wall Plastic magnet cover Magnet styles from McMaster Carr: Magnets (try building a pipe-wall magnetic block out of wood and connect …
