Shastania - First time I've looked in this thread as ATP went live just about the time I got really busy. I agree - the plant above is severely virused. I hope by now, you've looked up links about Hosta Virus X and learned about it. If you've had that plant for awhile, you MAY have spread the virus to other plants, so I would keep watching them carefully and get into a habit of always sanitizing your tools (or hands) when you go from one plant to another.
As far as seeds, are you over on the Hallson list? sometimes people post seeds that are available there. Perhaps there could be such a thread here. I trust you do know that hosta seeds with one or two exceptions will not come true to the parent plant. The vast majority will be plain green ones and not overly exciting green ones at that. However, you can also get blue or yellow, usually solid colours. And you might get such traits as wavy leaves, red petioles, etc. And finally, you might get some really nice surprises. Just be prepared to get brutal if you collect and start your own seeds.
