[potlatch]

This is interesting and so neat to see! I was curious as to how they formed the hollow center;

[The top snow layer becomes a bit sticky, and you then need a fairly strong wind. The sticky layer can be peeled off the colder and more powdery snow underneath by the wind forming a roll.]

Not sure who keeps track of strange things like this but pinging a couple of people on it. Thanks for posting TKR!

[JoeProBono]

[devolve]

.

Thanks potlatch

Roll your own!

[bitt]

never saw these! thanks!