The Hobonichi Techo is a Japanese daily planner. This is a slim stick of six tiny Moomin stamps for marking up its pages, made by stamp maker Kodomo no Kao with Hobonichi.

The ink is built into the stick. Hold it over the spot you want, press the button, and the icon prints.

Why people love it

• Six icons in one stick, each one printing in its own colour, so a single stamp gives you a whole set of markers
• Each print is 5.5 mm, small enough to sit inside one day's box on a monthly calendar
• The inks do not smudge, so you can stamp one icon on top of another
• The stick is 77 x 15 x 14 mm and weighs about 15 g, so it travels in a pen case or a planner cover
• No ink pad to open, so it works one handed

Mark your to-do list with Moomintroll, an outing with Snufkin, a shopping trip with Moominmamma's handbag.