With these magnets and through the use of a Dremel with a flat head cutter housing to dig for them in the figures and vehicles, the result is excellent.
Only my fingers suffer the effects of cyanoacrylate glue to glue the magnets necessary.
A council made much attention to the polarity of the magnets upon paste !!! (Eg., I have paid great attention to the level of my foot so that their backpacks are all magnetized in the same way, to climb without fumbling for which bag is "compatible" with what figure)
My wife has me steal quelques'uns to do some picture frames to put on the fridge.