that.
from the white orchard tavern
this!
Adding: Ok will give an example. Believability merchandise or 'Immersion'
For example, remember this.
The movie was hugely popular & awesome but what really 'brought it to life'
Was when they brought out this
Actual Toys of the movie, it was like your imagination as a kid 'coming to life'.
Here is a 17 minute review video on the Buzz Toy, you'll see what I mean. (Not my video).
[video]http://youtube.com/watch?v=E9D2D7e8Rj0[/video]
So going off what sagitarii said about the mug from white orchid Tavern, I would suggest dtoing a poll? Or find something immensely popular in-game & turn that into a 'Real' version, meaning something more then just a replica;something you can actually use.
Say for example a Tavern is immensely popular, you could make a sign wooden so people could actually put it above their gaming 'den' or outside any door with the Tavern name identical to that in the game as the design, with the mug usable but identical or cloest to authenticity you can get for believability & usability not just show.
So when you drink coffee (or have a burbon or whiskey) while playing the Witcher 3 you can have a swig from a real useable Stein that is identical in pattern as the one in White Orchad & properly made so it's useable like a real Beer Stein.
http://en.m.wikipedia.org/wiki/Beer_stein
That way it adds to immersion, & seeing how as to you dedicating to quality CD Projekt Red, I have no doubt the authenticity & replication but useable would be right up your alley.
This would be awesome. Would make sure though communicate with the community to make sure the idea in which you want to sell is both wanted & sellable as don't want to mske something for no reason.
Poll what places people like? Keep the communication open as you are close to us as a community.