Ever Use Clam Ice Anchors?

I've have used the ones HT Enterprises makes and I've also just used big eye bolts and screwed them in. You need something to turn them with. I just put a screwdriver in through the eye and that gives enough torque to screw them in. But I reccomend that that you attach small bungees between them and your hut. A strong wind can rip you hut without a little shock absorber between them.