"A texture known in the game files as "skis.png", was added in the Christmas/New Year update. Its textures were added by Dinnerbone as a red herring"
This is what they'd look like if they actually were a feature
But going up blocks would maybe be a problem...
Textures from Minecraft, which is a trademark of Mojang AB
Programs used: JMC2OBJ, SketchUp for modeling, Kerkythea for rendering and Paint.NET for image editing.
Render time: 10 hours 13 minutes