Boardrack
This board rack is great, because it'll hold up to 4 snowboards easily. It is made super sturdy!
The down side is you need to purchase the bike rack also.

Excellent solution for wintersports fans with soft tops
I bought this to use with my 2010 Wrangler Jeep. It works really well. It works using a base plate that fits behind your spare wheel, with mounting prong coming through the middle of the wheel. Once you have installed the bike rack and then added the ski rack it really is just one piece you have to turn, in order to un-mount or mount the entire rack. This is so much easier than mounting the rack on a roof rack as I had done previously. It looks great on the vehicle, and holds everything in place safely and securely (using the supplied locks). I would highly recommend it.

Not bad - doesn't fit shaped skis
I just fitted this to my 998xt rack. It fits fairly well, and feels pretty secure. It's well made, and comes with all the accessories you'll need.

The downside is that it's impossible to get my shaped skis (Rossi Bandit B3s) into the rack the way they suggest (back to back). They do fit, but less securely, as individual skis. This reduces the capacity to 3 pairs of skis, and not 6.

Also the height of the rack, even with my relatively short skis, is insane - the tops of the skis stand a good 2 feet above the roofline of my SUV.

To be honest.... I wish I'd bought a roof rack, and just stuck with the Thule rack for my bike.