These are what are known as "Full Mask" or "Mask" sporrans. They can be found in a few places. The site you've linked to is Craigies, and it's probably the best known source of these. The Scottish Tartans Museum has an option to order a few. And, our own Turpin makes Mask sporrans as well. I was not a fan the first time I saw one. But, I must say I really do like them these days. I would like to have one made from a red fox.