Japan is one of the few countries where a inkan (personal seal) is being used as official authorization method for contracts. An inkan, basically stamp on the document, is made with a hanko. The hanko is a carved stamp made out of wood or stone which normally contains the name of the person, or at least parts of the name of the person. Yet, there are a lot of general hanko stamps as well in Japan. Did you know there are also a lot of stamps with JDM cars available?
One company that sells these official licensed stamps is monoiy.com
At the time of writing, there are Honda, Mitsubishi, Nissan, Subaru, Suzuki and Isuzu. The amount of models for each brand is plentiful. The Honda Beat, Nissan Skyline, Subaru 360 and Suzuki Alto, they are all there. Besides these, some other interesting brands are available so make sure to browse the site. When ordering a stamp, you can customise the Japanese text that you see on the pictures with some text you like up to 6 characters.
For a hanko, you’d better have a case as well otherwise you might lose it quickly. So monoiy also sells these in a lot of different designs. In addition to all of this, there are also a lot of other car related products available.
A different company that sells these type of stamps is ono-inbo.jp.
Ono-inbo has Toyota, Honda, Mitsubishi, Nissan and some English cars in the line-up. The design is different compared to that of monoiy. Some example designs: