Note: this week (10/3), Barney was wearing the ducky tie. Robin actually mentioned it.
I did note that! I also noted NPH playing a flaming gay character, which was getting pretty damned meta. 
Is it too much to hope for that Kal Penn sticks around and marries Robin?
He’s going to stick around for a few episodes at least and start dating Robin.
And yet, he couldn’t just buy another d@+^ space pen and be done with it. . .
Ted’s not jewish? Really? I thought he was. . .
Josh Radnor’s Jewish (as are both Alyson Hannigan and Jason Segel, at least partially), but I’m pretty sure Ted isn’t.
Jerry shouldn’t have to. Jack Klompus could afford to give away a pen with all his money. Believe me. He writes a check for $19.45? He didn’t have a Coke? Ho, ho, ho!
Ted’s from Ohio. Lily might be Jewish - she has certain JAP tendencies and she’s from New York.
I hear tell there’s rumors of Jews in Ohio! Don’t tell anyone!
-Joe
Because there are no Jews in Ohio? 
Because Ted once spent Christmas with his Fundamentalist Christian cousins (whose kids had never heard the word “grinch”* before). Sure, there could have been some conversions involved, but it didn’t seem very likely under the circumstances.
- In the sense of “cunt”.
By the way, the season started with Barney having a crisis at his wedding because he wasn’t able to choose between two different ties. Then we find that he’s saddled with the Ducky Tie for the year.
First, what this shows is that either Barney somehow gets out of the bet (for at least the wedding), or the flash forward is from more than a year in the future.
Second, I’m going to guess that the lessons he learns from the Ducky Tie wearing (whatever the heck they may be) will directly translate into his decision on the wedding tie situation.
I think I was making a joke; I’m not entirely sure at this point. 
So, you say there might be Jews in Ohio, eh? Fascinating!
(I thought the word his cousins hadn’t heard was “bitch,” but you might be right, Alessan.)
Hey, anyone remember Jen? Here’s a lovely photo I found online. Hey, maybe Jen turns out to be his wife! (I do like the cats as the bridesmaids.)
I thought so too, until I read otherwise here on the board. It makes sense, actually - “bitch” isn’t that strong a word; after all, Lily says "Sonovabeech!"all the time. “Cunt”, though, is just the kind of word that she would have a *very *hard time forgiving
Not necessarily. Remember, towards the end, right after Ted leaves to go talk to the bride, Lily says to Barney (paraphrasing:)
“You’re going with that tie?”
Which might be a subtle way of Lily reminding Barney that no, just because it’s his wedding doesn’t mean he gets out of the bet.
The episode where Ted finds out his parents are divorced has a bit where Barney goes to Mass with Ted’s mother.
You make a good point.
This one is far more frightening.
http://tvovermind.zap2it.com/wp-content/gallery/how-i-met-your-mother-5-02-promo-pics/98400_D0904b.jpg
The pics seem to be showing a bachelor party. and Robin is there, and seems to be drinking in a very determined manner.
That was from the episode where Robin shows Barney how cool she is with strip clubs and goes to one with him (and Lily and Marshall).
I’m coming around to the Robin is Barney’s bride camp. I’m thinking that Nora will want Barney to wear something other than the Ducky Tie, which (having lost the bet) he won’t. Nora will want to know why (his bet with Marshall). She will then want to know what the stakes of the bet were. I doubt very much that she would be amused that Barney wanted to cop a feel of Lilly’s pregnancy boobs while he was desperately trying to win Nora back.