As a result, I bought quite a few stamps:
I bought the Totoro-set of 4 (lower center) at the Ghibli museum. The red Miffy stamp is actually self-inking, which is pretty cool. I bought that one, along with the other three tiny stamps (below the crane) at the Isetan department store in Kyoto. The four square stamps at the lower-right (bunny, flower, cloud and snow) I bought at a toy store. The stag beatle (far right) I bought at a stationery shop in downtown Kyoto, while klik went on a shopping spree there. The bats (far left) and the ginko leaf I bought at the Itoya store: 9 floors of stationery at the Ginza.
The rest are actually custom stamps produced by an artisan stamp-maker in Kyoto. The bag we got to package them in was stamped with a kappa motif -- apparently the kappa is his sigil, and he had a lot of stamps with a kappa engaged in various activities. Pretty cool to design your own stamps, in that way. As you can see, the selection we took home is a bit Japan-themed...
Today we got inks and embossing powder, which I will experiment with later. There's also the technique to use paint-pens to pre-color the stamps. I hope that works out, and I get to make cool stuff with them.