- a Yukata (lightweight summer kimono, from around €20 for simple versions at "Oriental Bazar" in Shibuya),

- Kimono is expensive (there are secondhand kimonos in a shop in Kappabashi in Tokyo) and it's nearly impossible to wear without some experience...
Note that in Tokyo, Oriental Bazar on Omotesando is decent, but there are better options like Nagamochi-ya, a chain with shops in major department stores such as Daimaru near Tokyo Station, Matsuya in Ginza, and Isetan in Shinjuku. Tansu-ya also has several locations including one near the Roppongi intersection (next to Citibank), plus shops along Nakamise (the avenue leading to the temple) in Asakusa, which carry new items at discounted prices and occasionally secondhand pieces.

- Kokeshi (wooden dolls)
- Fans
- Bags and accessories with Japanese motifs
- Good luck charms purchased at Shinto temples
- Tea
- Sake and sake serving sets
- A sushi knife and kitchen utensils (Kappabashi, a 10-minute walk from Asakusa in Tokyo, Nishiki Food Market in Kyoto),
- Clothing: magnificent t-shirts with Japanese characters...
- Half curtains that they hang at restaurant entrances (there's a specialized shop at the entrance of Asakusa)
- A katana but make sure it fits in your suitcase
- Gadgets from the 100 yen shops
- At Narita Airport there's a small shop selling soaps with absolutely incredible different fragrances
- A robot, for example this mini robot (around €30), controlled by infrared:






In Kyoto, you must visit one of the 3 main flea markets, the 12th at Chion-Ji temple (relatively small but good selection), the 21st at To-Ji (immense, fantastic and a 15-minute walk from the station), the 25th at Kitano-Tenmangu (same). There are also plenty of shops specializing in secondhand kimonos at reasonable prices (see https://www.kyotoguide.com/, in English, with all the necessary dates and addresses. The paper version is available free at tourist information offices and hotels and contains excellent city maps).


Note that depending on the euro/yen exchange rate, it may be worth buying electronics:
- For cameras, prices are the same but with a generation ahead.
- Flat screens are 40% cheaper than in Europe.
- MP3 players cost around €50 less, same for portable gaming consoles


In summary: pack with extra suitcase space, otherwise you'll end up doing what I do on almost every trip—making frequent visits to the post office to ship your haul home and buying an extra suitcase at the last minute anyway...