My Nintendo Europe have a calender available for 2021. For just 300 Platinum Points (and shipping costs) it can be yours!

Grab the calender for yourself here. These are the shipping costs:

To Germany – 3.99 EUR / 3.55 GBP / 4.45 CHF
To other countries* – 6.99 EUR / 6.25 GBP / 7.80 CHF

* Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Spain, Finland, France, Greece, Hungary, Ireland, Italy, Lithuania, Luxembourg, Latvia, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Sweden, Switzerland, Slovenia, Slovakia, UK

Source: Nintendo Life