Have you tried this Japanese one.
Think your eyes are trying to pop out now, what till you see this one.
http://www.succulents.jp/photo...
The Martin Miklanek list of cultivars is in my Links, it is great for reference.
I Bookmarked the Fernwood site as it has many interesting things on it, thank you for posting it.
The last one is one that twit showed us and it is now in our Links. It is another great reference site.
Wow, what else are you finding Janet?