Where are you in Japan right now?
As for Osaka:
TOMICA Shop Osaka - [font=Roboto, Arial, sans-serif]Japan, 〒530-0001 Osaka, Kita Ward, Umeda, 3 Chome−1−1 大丸梅田店13F[/font]
[font=Roboto, Arial, sans-serif]Plarail Shop Osaka - Japan, 〒530-0001 Osaka, Kita Ward, Umeda, 3 Chome−1−1 大丸梅田店 13F[/font]
[font=Roboto, Arial, sans-serif]Also, check all major electronic (ie. camera) stores such as Bic Camera and Yodobashi Camera. [/font]
[font=Roboto, Arial, sans-serif]Bic Camera Namba Store: 2 Chome-10-1 Sennichimae, Chuo Ward, Osaka, 542-0074, Japan[/font]
[font=Roboto, Arial, sans-serif]BIC CAMERRA Abeno Q's Mall Store: Japan, 〒545-0052 Osaka, Abeno Ward, Abenosuji, 1 Chome−6−1 あべのキューズモール 3階 あべのキューズモール 3F[/font]
[font=Roboto, Arial, sans-serif]Yodobashi Camera Multimedia Umeda Store: 1-1 Ofukacho, Kita Ward, Osaka, 530-0011, Japan[/font]
[font=Roboto, Arial, sans-serif]And of course, try the Toys R Us Stores:[/font]
[font=Roboto, Arial, sans-serif]Toys R Us Namba Parks Store: Japan, 〒556-0011 Osaka, Naniwa Ward, Nanbanaka, 2 Chome−10−70 なんばパークス 1F[/font]