EkiStamp Books

Obviously this is up to you, but here are some options you can choose.

Buy them

If you want to see what delightful designs the Japanese have come up with, feel free to spend on these. They apparently cost up to 2000 yen on average.

Make your own

I did this using my stash of A6 notebooks. I'd bought an 80-cent plain notebook a few months ago and it worked just fine, though since the paper was too thin I could see some of the stamp bleeding over.

Use your diary

This will make the collection quest even more personal, and you can add travel notes to the stamps as well :)