Still, no pictures, because I’m lame. Maybe I’ll remember tomorrow. However the magnets I use are rare earth magnets. We actually carry them at FNG for exactly this purpose, though I did pick up some from Think Geek before they became popular for use in minis. The ones I use are 1/8″x1/16″ discs. I am careful to always check magnets against previously assembled pieces so that the polarity matches up. Pretty much every model I have that uses a flying base now has a magnet in it, whether it’s a Battle Fleet Gothic Eldar ship, Tau Gun Drone, eldar Jetbike or whatever. The smaller ones are just a little too tiny I’ve found. Though I have seen folks only who have used two of the 16x32ers.