I grafted this guy to pereskiopsis almost a year ago and have somehow lost the tag that was in the pot since then. I'm thinking it may be Ariocarpus agavoides, but I want some more input. If you don't have any idea, just enjoy the pics!
Here he is just a couple weeks after being grafted.
And a couple months after that (I wish it had stayed this color).
And here are a couple shots of him now.
Thanks for looking!