anything related to printing on or with anything you can contact me at dsj@toptryk.dk (work email) or my boss at pbs@toptryk.dk (also work email).
If we cannot print it ourselves, we do have alot of contacts in the business, so if you need to find a good place to get special stuff printed (for example huge banners for drupalcon, inside or outside bella center) we might not be able to make them but can probably recommend a few companies that can... it's all about the connections :)
We "might" be able to lend the hand of our designers, but i wont make any promise there as we only have 3 which are almost always busy, i will leave any promises on this part up to my boss :)

On a side-note, if my livestream tests work out over the next couple of weeks i can explain how i made it work so you might be able to offer it for drupalcon aswell (just a thought that i might be awesome to have)

I will like to give you a helping hand, so contact me at np@prins-it.dk.