Try e-Bay, that has EVERYTHING!
you have to make and buy it online.
Only on PC by downloading the Skyrim Online mod on the SkyrimNexus and there will be a Skyrim online DLC in 2013
you have to buy a tshirt
No, because MMORPGs are online only RPGs. Skyrim is not an online game, so no, it is not.
Google "buy Skyrim shirt" and you'll find multiple options of stores. Some examples that came up when I searched it were: CaffePress, Spreadshirt, Amazon, and where I got my original designed shirt, Redbubble.
no
There is NO demo for Skyrim, buy the real game.
You tell your steward to buy it for you.
Yes, you download it from Steam after you activate the game.
There is The Elder Scrolls Online, but that is a different game.
If by "skyrim online", you mean The Elder Scrolls Online, than most likely not. MMOs are almost never released on anything but the PC platform.
At the One Direction wedsite. Or you could get on from eBay, amazon.