The year I stopped going to Wurstfest in Hermann, Missouri was the year they got gummy brats.
Seeing as I love apples and cherries in sausage, I can see how this could be good. But then, I think I'd rather have apples or cherries instead of weird day-glo candies.
As a novelty food, I'd try it in a heartbeat. As a regular foodstuff? Not so much.
And as an aside: if you are a fan of encased meats, and are ever in Hermann at the end of March, go to Wurstfest. So...much...sausage.