Anime News Network's merchandise coverage sponsored by Tokyo Otaku Mode

The girls of the Hokage Tea Time band regularly got instrument tie-ins during height of the show's popularity. Autographed guitars were especially popular in Lawson campaigns.

Interest in the series has waned, which isn't unusual for a show that's almost seven years old. Still, the characters' birthdays usually get some kind of recognition with new tie-in goods.

Bass player Mio Akiyama is celebrated her birthday on January 15. The TBS and MBS television station store, Animaru, noted the day with new goods. Items include a light-up bass effector, nearly life-size pillows, a glasses holder, and t-shirt.

The "K-On! Mio Driver (K-MD1) costs 29,700 yen (US$254) and has a light-up engraving when the power is turned on. One of the dials is the "Hokage Tea Time" control.

The acrylic glasses stand depicts Mio's face, so you can rest your glasses on her when you aren't using them. It costs 3,780 yen (US$32).

The seal set includes a stamp that can be used on official documents, a carrying case, and an ink pad. It costs 4,860 yen (US$41.50).

The almost life-size pillow of Mio shows her in a blue mini-dress with a high ponytail. It's 100cm × 150cm (39in x 59in) and costs 15,222 yen (US$130). The shop also has the same pillow but with a removable cover for 20,365 yen (US$174).

A t-shirt of Mio wearing an over-sized top hat costs 5,616 yen (US$48).

A folded chair-like cushion costs 7,992 yen (US$69). Replacement covers cost 5,724 yen (US$49).

The shop is also selling an overstuffed square pillow of Mio for 7,020 yen (US$60).

Source: Comic Natalie