material: PLA / ABS
infill: 100%

for assembly you need
neodym magnete 5x5mm x2
20awg silicone wire 20cm or more
dichlorestan for ABS / super glue for ABS/PLA

to connect the wire with the magnet, you can use a metal plate and spot welding or soldering iron, but you will need to put the magnet on something diverting heat so that it does not degrade