"In Dr. Awkward's physics lab, an experiment succeeded in creating magnetic monopoles. We've experimented with different materials that have different magnetic field strengths, and finally we've perfected the process. Now we are starting to sell them commercially. To stabilize them for shipping, we pack them in flat cases with a bunch of dipole magnets of the same material, and some plain iron bars, in various patterns. Of course, for efficiency every 1x1 space is a monopole. Excuse me, we've just got our first multi-case order and I'm the only one who really understands how to pack the cases in their shipping box."
"Put this one with field strength 2 in first, just like it is. Then put that one this way. . . ."