Ishbel, that looks like fun. I've heard of egg races, but no pancake races, here. Not sure if you mean pancake or crepe fillings, but there are two restaurants here that come to mind. Neither have pudding fillings, but just about every filling you can think of under the sun.
For the crepes, a restaurant I went to long ago was called the Magic Pan in Beverly Hills...they were all over the place. You name it, and they could wrap it up in a crepe. For the pancakes, there is a chain of restaurants called IHOP (International House of Pancakes). They run promos from time to time with yummy fillings - like caramel toppings on waffles (with bananas etc.), french toast and pancakes. They have several fruit syrups. The possibilities are endless as to what you can put in the crepes/pancakes - anything from seafood to dessert.
I recall seeing/hearing about a place in New York City, where the crepe/waffle is shaped like a cone, and you can choose any filling, (ice cream etc.) and take it to go (eat and walk). Somewhere, hope I can locate it, had a recipe (from I think Wolfgang) for Chinese pancakes. Here is the recent promo for Cinn-a-stacks http://www.ihop.com/indexnatl.html
Thanks for sharing the link.