For those of you un-familiar with 3D printing, this is why we have Google. Otherwise, read away;

The concept is simple. Say you've invested hours upon hours of time, money and happiness into your knight's grind. You've finally adorned the top-tier armour, obtained the weapons of mass digital destruction and generally maximized your potential as far as the current update will allow.

Now, It's just a lil' idea and it could well blow over, but what might be awesome is if you were able to send-off for a small 3D print of your knight as homage to your in-game achievement. So essentially you select your most kick-[bucket] loadout, pick from a list of pre-selected in-game poses of which to have your knight frozen, hit finalize and voilà: one desktop worthy knight IRL. (Perhaps even printed on a shallow cylindrical plinth with the knight name inscribed, although that might be pushing it a little..)

Of course, there are the technicalities to be concerned with in terms of how the printing works, i.e. the digital character models would have to be compatible with whatever printing software/hardware is used, + there's the issue of cost, I have no idea how expensive it'd be to pay for given potential outsourcing for printing facilities and so on..

The idea is that it could be a personal investment if in want of a unique desktop addition for the home/office, or even as a gift whereby someone else could pay for the service, kinda like a 3D printing voucher.

Hell, on a side-note it might even be cool just to have regular mobs and bosses available as 3D prints as per request.

Anyway, it's just a spur of the moment thought, so feel free to scrutinize, adapt or develop the idea as you will. (and Happy Christmas! :D)