Clean your screen with Mario and pals
Seems Mario's face is appearing everywhere these days, including on your screen. No, not in the game, but actually on the screen, while cleaning it. The backs of these keychains have soft microfiber perfect for cleaning screens without harming them. Three varieties. 680 yen each, but you can grab them at AmiAmi for the usual discount, making them 600 yen each.
Mario screen cleaner
Mario on Yoshi screen cleaner
Mushroom screen cleaner