ski origin - Whilst it could be a ski brand, so could pretty much anything really. origin.com is a very valuable domain, but once you have skiorigin.com it is very limiting and hard to sell. Someone has to want to start a ski origin brand for you to be able to sell it, so probability of a sale is very slim.
wakeboarding.me - Sorry, but the .me is not favoured. Even if it was .com, you have to have someone that favours the generic over a more memorable brand name .com. Sorry, but your chances of a sale are quite slim here. Advertise it on forums and hope.