You may want to check out eBay or Etsy for the Silver Surfer. I personally find some unusual plants there but, you must be sure you get what you think you ordered. Some plants are mislabeled unfortunately. If I find the Silver Surfer I will certainly let you know.
I have never had a rubber plant, nor a snake plant. I love peace lilies and my old one is dying. I really want a new one but have not taken the time to look for one.
Hopefully we will find more houseplant people on this Forum and maybe we can find new sources for plants also.