Well... My miniature hobby centers much around Space Crusade at the time, so I give you:

MAGNETIZED SPACE MARINES!!! On cool detailed resin bases! Wooo!

Genestealer Hybrids with heavy weapons!

And a tyranid warrior!
The magnets might seem a little excessive since the minis are already designed to swap weapons. But I've already snapped the little rod on one of the weapons while swapping, and I wasn't even violent!
And since I plan to paint them anyway, easy snap magnets will wear less on the varnish than eager fingers struggling to remove the fat hard rod from the tight holes! what?
For those who don't recognize the hybrids and tyranids from the game, it's from one of the White Dwarf expansions. I actually bought a full set of semi-rare classic tyranids on eBay.