Out of curiosity I had a look for that book Chris mentioned on Amazon.co.jp found a whole slew of them as well as some other interesting items that I've not seen before when I used 'PlaRail' as a search term (it accepts english as well as japanese for searches).
PlaRail Books
Plarail Action with Rails! Here Goes! Light Up! E235 Series Yamanote Line
J-19 Pla-Kids Sound Crossing Set
purare-ru Today I from the Ostrich. gatyaxtu and. Action Station
Pra Rail I Suki! Funny Train Series Keihan Train 10000 Series
Plarail SC-06 Doraemon Train
Pra Rail 16096 Sneakers
Plarail J - 26 Platform Door Station
Tomy purare-ruibento Limited 3 Both Single item Car Train Hokkaido
purare-rumanyuaru Current Complete Guide (asuka Visual Series) (日本語) 大型本 – 2018/5/7
PlaRail Books
Plarail Action with Rails! Here Goes! Light Up! E235 Series Yamanote Line
J-19 Pla-Kids Sound Crossing Set
purare-ru Today I from the Ostrich. gatyaxtu and. Action Station
Pra Rail I Suki! Funny Train Series Keihan Train 10000 Series
Plarail SC-06 Doraemon Train
Pra Rail 16096 Sneakers
Plarail J - 26 Platform Door Station
Tomy purare-ruibento Limited 3 Both Single item Car Train Hokkaido
purare-rumanyuaru Current Complete Guide (asuka Visual Series) (日本語) 大型本 – 2018/5/7
Happily collecting things all my life... 
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