Let me run an idea by you: the von Mises coat of arms + cuff links.
Thank you for your time,
I'd buy them. I'd buy the hell out of them.
Pro Christo et Libertate integre!
Haha. One of these things, with Mises quotes!
Seriously, sign me up for the cuff links, too!
freaking ACTION FIGURES! Hell yeah! von Mises with realistic Battle Damage! Hayek with kung-fu action chop! You could even add sound effects: "hayyyyyy-EK!"
Seriously though, I'd buy some cufflinks. I'd buy the crap out of them, and then I'd wear the crap out of them.
Also, maybe something more casual along the lines of those silly plastic bracelets? Maybe a white bracelet that says "liberty"? Or a gold one that says "gold:putting the 'trust' back in money"?
Now I'm thinking of printing up t-shirts.