| Thanks for that. This may seem a bit far out, but I once saw a guy at an IPMS meet a few years back who would fill the hollow wheel halves with iron powder (heavens knows where he got it). He would then put very small but very powerful magnets on the board, spaced just right for the wheels, before he detailed the board. You could hold his display board upside down and the model wouldn't come off! But he could still remove it if he wished, for cleaning, or if he wanted to use the display board for something else. | 
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