Here's my idea. Bring any games you have that involve some location that has an exotic nature to it. I'm thinking games that either have an exotic feel to them or actually take place in some foreign, intriguing, colorful world. This is quite a few of my games, hence why I would love a day around this theme.
I'll be bringing:
Asara - Build the tallest and greatest number of beautiful towers to appease the Sultan.
Safranito - Accurate reflexes are necessary to get the spices you need to complete some very exotic dishes.
Lords of Waterdeep - A city full of lords trying to use the towns folk as pawns to build up their reputation while disrupting the plots of other lords.
Marrakech - Assam is overseeing a beautiful carpet market in Marrekesh and you want to be the one whose rugs he admires the most.
Maharani - The Taj Mahal needs some color. You compete with other designers in laying down colorful mosaics but you have to make sure they will fit where you need them.