In addition to the official goods list, there’s also this set of 2 x B5 notebooks that you can purchase along with 1 x maeuriken (pre-sale voucher that can be used to exchange for a Ichifure movie ticket). Each set costs 2,200yen and can only be bought using loppi at Lawson/Ministop in Japan.
The second one is the same design as the one used in the movie.