Dwarves in D&D are stereotypically scottish. I've yet to see a DF dwarf say och or aye or laddie, though, thank goodness (for originality).
Scots pretty much fail though--when you look at wars they've had bad luck. It's why DF dwarves are Russian. Look how often Russia has been sieged! Not to mention the quasi-communism that goes on in these forts.
I prefer to see my dwarves in an Irish manner. We're happy little boozers (oddly enough, stereotypically accurate.), we yoik and sing, and we fight and we dance til' the morning. (Sorry, I've been listening to a bit of Korpiklanni lately. BTW, awesome band.) Inventive, and just plain nuts.
Proof of concept, and a little easter egg as to why I like the name Bloodfist (IE- Megaproject). It's also sorta in honor of my great ancestor who won a decent chunk of land in a race. By technicality, the first person to touch the land wins it. My great-ancestor was losing the boat race, to reach the land.
Now, I must repeat. The first one to
TOUCH the land, wins it. He was losing. You can guess what happened next.
He chopped off his own carping hand, and threw it over to the land... AND WON!!
...Yeah. I think I'm a descendant of dwarves. There's even a coat of arms that chronicles it with a similar tribute.
...My entire family (including myself) is just plain nuts. I love it.