Here is the background:

Stannis posted QWERTYUIOP to the network.
Then he refused to explain what one was when Rickon demanded to know.

More specifically, he actually told the truth and said there's no such thing, but Rickon is certain that grown-ups are trying to hide things from him because he's a child.

HE IS BIG and can fight. He promised he would find a qwertyuiop and make Stannis sorry. Not a threat, a PROMISE. Rickon doesn't make empty threats except for sometimes, when other things are more important or he loses track. He's only seven. Or six. Or six going on seven.

So then he made a post demanding to know about weird animals. He thinks a qwertyuiop is probably a weird animal. My only justification for this is that he's a small child. If he were a modern child maybe he'd think it was a dinosaur or a bulldozer.

Well, he is going to find something he thinks is a qwertyuiop ... and it's going to be ... Baron Vladimir Harkonnen!

I am very vague on the details of how this is going to come about, other than that he's going to try and get Harkonnen into the same room with Stannis. TO PROVE HE FOUND A QWERTYUIOP and you can't hide things from Rickon Honeybadger Stark.

Does anyone besides Stannis want to be involved in Rickon's epic hunt of a qwertyuiop?