If cow brains gets disqualified:
And if dog soup gets dq’d since it’s illegal in the US:
Steamed Silkworms.
Whatever those two girls were sharing in that one cup.
Specifically those that have the hog’s Last Supper still inside. (A few people really do eat them that way, though I doubt you could buy them in any store due to FDA regulations.)
Huh - “century eggs” or thousand-year eggs are delicious. Although, I must say, the ones I have in restaurants are much better than the ones I buy in the Asian grocery store, which are kind of smelly. I’d like to know where to get the non-smelly ones.
The one time I had a durian-custard-filled roll, I could still taste it two days later. I kind of liked the flavor at first, but it got old very quickly.
Eskimo icecream, which is very popular in the Arctic villages: One can of Crisco, mix in berries of choice. Eat.
Also, fermented beaver tail. This is beaver tail that has been buried for an unspecified amount of time until it’s rotted. Then it’s dug up and eaten, and then somebody calls the medevac chopper.
Frozen auks. In Greenland, auks are netted from the cliff edges, killed and then allowed to freeze. During winter, they’re dug up and eaten raw and still frozen: just spit out the feathers and bones as you go.
or <shudder> Marmite
Kina (sea urchins)
Tongue
Well, I know I’d eat anything. After watching that show/series about people with weird addictions and seeing the cleanser/comet/barkeeper’s friend eating lady, I thought I might just give it a taste just to see what she likes about it.
Cuitlacoche - Black fungus and corn, comes in a can.
Check out Steve Don’t Eat It
That’s what I thought - I’ve never tried it yet, but cod roe is really commonly available - almost any fish and chip shop in the UK will have it on the menu - so it can’t be that big of a challenge. (then again, peoples elsewhere eat and enjoy durian, so I guess it’s all relative)
Maggots should be fine, then.
For some reason a lot of people hate this stuff:
Li Hing Mui
It’s like eating a rock covered in rock salt.
Pig ears, brains, durian, sea urchin, been there, done that, survived it.
Century eggs, tongue - delicious.
I recall Cecil had a column on placenta, so start there.
Daniel Tosh’s cinnamon challenge might be a humorous second course.
And to wrap it up, Andrew Zimern had trouble choking down the Ugandan roadside poo sausage, so give that a go.
And there is your trifecta. . . .
(why doesn’t a cutting edge site like this have a decent barf smilie?)
I came in to say this and Balut. So my #3 is a Masai blood milk shake:
‘The mixing of cattle blood, obtained by nicking the jugular vein, and milk is done to prepare a ritual drink for special celebrations and as nourishment for the sick’
Hakarl (fermented Greenland shark) is a traditional dish in Iceland that I had the pleasure of trying while traveling there. It’s pretty nasty, although I choked it down without too much trouble. It’s served cut into (thankfully small) cubes and eaten with toothpicks. It has an almost overpowering ammonia flavor/aroma with a rotten-fish undertone. Anthony Bourdain tried some when he went to Iceland with No Reservations, and claimed it was the worst thing he’s ever tasted.
Incidentally, none of the Icelanders I talked to enjoyed it, and many (especially those under 30) had never even tried it. They describe it as being the kind of thing you order on a dare and chase down with a bunch of shots.
He also admits to not being able to tolerate the stinky tofu.
If I recall correctly, he finds the texture really off-putting.
This actually is surprisingly good. If you like mushrooms, truffles, and the like, it’ll be up your alley. It’s really not at all as disgusting as it may look.
You can get Surstromming mail-order? I love that vile stuff! 
As a guest of Honor, Zimmern was treated to the clots (a delicacy) that form from the blood and Milk on the special Stick/stirrer frothing device (not unlike chocolate’s molinillo).
I was able to get it about 4-5 years ago from The Northener (a Scandinavian mail order place that I’d buy my snus from.) However, I haven’t seen them sell in quite awhile, so it’s possible it’s not available anymore.