I modified the design of this magnificent Thor's hammer so that children can play magnetism when they are bored.

The design has 2-3 holes to insert magnets. To do this, you must add the printing pause before the layer that closes this gap, and insert the magnets.

It is ideal for multi-color printing at 3 layer heights.
You will need to check pauses, color changes, and the AMS system depending on how you have your printer set up.

I made many color combinations and the best one is: Bronze, brown (or dark wood) and steel (or gray)

At 0.8mm layer height:
Layer 35 (3magnets 4x2mm), 38 (2magnets 8x2mm or 10x2mm): Closing the magnet gap.
Layer 228: First color change from metal to handle.
Layer 478: Second color change from the handle to the metal of the hook to the key ring.