Resident evil movie T virus fridge magnet.
Print as 2 plates
Plate 1 - Helix model - ideally print in translucent filament with 100% infill and a brim.
Plate 2 - End caps - ideally print in silver silk, add a pause to insert the magnets (2x 8mm Diameter by 4mm deep).
Without removing the brim from the helix glue the Helix into one of the caps, when the glue has dried then remove the brim and glue on the second end cap.