Hi, Ryne! I like the way you think, my friend, and you have come to the right person if you are seeking a dessert in every nation of the World Showcase! I have eaten my way around the "world" several times, and love the different flavors and the variety of fabulous snacks! These are all either carts, kiosks or counter service locations, so no need to worry about Advanced Dining Reservations!
Boulangerie Patisserie - France - strawberry and lemon tarts; try the raspberry schuss for something different
Kringla Bakeri og Cafe - Norway - Two words - rice cream! I can't get my kids out of the park until they've had one. I also love the lefse.
Morocco Coffee and Pastries - Morocco - try the baklava
Lotus Blossom Cafe - China - My gang likes the red bean ice cream, but I love the ginger caramel flavor.
Sommerfest - Germany - The Black Forest Cake Roulade is a favorite here, but I usually opt for the apple strudel!
Tutto Italia - the kiosk in Italy - you can get a cannoli here, but being 10 minutes from the best cannolis on the planet in South Philadelphia, I usually grab a tiramisu. Delish!
Kaki Gori - Japan - we absolutely love this shaved ice treat - in rainbow!
Funnel Cake Cart - America - you can't pass up this classic American carnival fare!
Yorkshire County Fish and Chips - authentic British shortbread here.
Taqueria Del Lago - Mexico - Try the flan.
I hope this helps you enjoy a multi-cultural culinary tour of the World Showcase!
Have a great vacation!