The Frozen spin-off merchandise market has spawned everything from Keep Calm And Let It Go tote bags to Norwegian holidays, and its Snow Glow Elsa is the most sought-after toy this Christmas. But now there’s the gift for the Frozen-obsessed oligarch’s daughter who has it all: a calendar costing 100m yen, or over £530,000.

As reported by the Toybox blog, the 2015 calendar sold by Tokyo jewellers Ginza Tanaka measures 75x50cm, weighs 10kg, and is made of pure platinum. If you can’t afford it but your child isn’t taking no for an answer, there are other versions at 60,000 yen (£320) and 15,000 yen (£80).

The Frozen calendar offered by Ginza Tanaka. Photograph: Ginza Tanaka

Ginza Tanaka is used to offering bizarre, rather speculative special items. Last year the firm created a gold replica of Argentinian footballer Lionel Messi’s foot, costing £2.5m, while a gold Godzilla statue was put on sale at around £800,000. In 2012 they made a gold Disney-themed Christmas tree, retailing at £2.7m.

Frozen has been hugely popular in Japan, becoming the country’s third-highest box office hit ever, with various commenters suggesting that the film’s message of female empowerment has chimed with women struggling to make themselves heard in a chauvinist, male-dominated society. It has already been blamed for at least one divorce, after a woman couldn’t comprehend her husband’s indifference towards the Disney hit.

Japan has also generated one of the most bizarre and technologically advanced pieces of Frozen merchandise: the Close Sister Bra, made by Triumph, whose e-paper fabric changes colour and design when held against another matching bra. The range also comes with two sizes of enhancement padding, etched with “Big Sister” and “Little Sister”.