More to explore:
Looks like a lot of fun, but I don't understand why I can't find pictures of the stamps anywhere on the site - trying to see what they look like just from the card samples or squinting to make out what's on this page with just the red rubber? Really?
If you look at the cards posted to the left you can see them stamped There is 7 of them;
"Thank You" "Congratulations" "Thinking of You"
and one not shown I think is "Mad Crazy For You"
Oops I mean the cards to the right.
The seventh stamp is actually "Made for you by me." You can stamp it on the backs of the cards you make.