Magnetic Dice Cube

When I saw a Rubik's cube made from dice and magnets in a Mathologer video I just had to try and see if I could make one myself. This image is taken from the video.

What you need is 27 dice a drilling machine, a stand and a vise to hold the die while you are drilling a pit into the face. The stand should be securely attached to its base and have a regulation for the drilling depth. You need 1·6+6·5+12·4+8·3=108 Neodynium magnets with a diameter of 5 mm and a height of 2 mm. Use superglue to fix the magnets in the pit. To make the bottoms of the pits horisontal instead of conical you need a special type of drill, an end mill cutter. You will probably not find any dice with colored dots so use black dice with white dots and color the dots with whiteboard pens.

Choose a certain outward polarity for all the magnets on the center cube, and let the rest follow a checkerboard pattern, with identical outward polarities on each die, opposite that of the face on the more central neighboring die. Sliding a magnet into its pit can be a bit of a challenge. Try to get it right to avoid the trouble of pulling the magnet out if it comes down with wrong polarity facing up.

Dodecahedral Calender

My next little construction is based on the dodecahedron with 12 faces, one for each month. Use a printout of a flat dodecahedron and put it on a thick cardboard. Prepare the edges for folding with a utility knife. Make pentagonal prints of each calender month and glue them to the faces of the dodecahedron. Fold the dodecahehedron into its 3D-shape and tape it together at the edges. The only downside is that you have to renew the faces each year.