I have finally updated the design of my working minifig ski hill and finished making instructions for it. If you are not familiar with this model, it is a fully operational ski hill that allows your minifigs to go endlessly skiing on their own.
You can see a demonstration of the model in the following video and read more about it below. Building instructions are available on Rebrickable, and a full building kit is available from BuildaMOC. If you build it, or are thinking of building it, be sure to read the build notes below to get the most out of it.