[Incomplete] Japan: Super Mario (2017)

Used on Cards:

Finland: Moomins (2017)

On a matching Card:

FDC:

Used on a Card with a Special Postmark:

Spain: Star Wars (2017)

Germany: Hans Huckebein Special Postmark (2017)

On a matching Card:

Russia: Fables (2017)

[Appendix] Faroe Islands: Fairy Tale Castle (2017)

The creators of these stamps had to be really creative, as this year's theme of the EUROPA stamps was castles and the Faroe Islands do not have any islands, so they used a castle from a fairy tale instead.

[Appendix] Japan: Peanuts (2017)

Used on a Card:

[Appendix] Japan: Rose of Versailles Special Postmark (2017)

Spain: Quino and Mafalda (2017)

[Appendix] Germany: Ottifant (2017)

On matching Cards with Special Postmarks:

Germany: Karl May Prepaid Cover and Special Postmark (2017)

[Appendix] Japan: Winnie the Pooh (2017)

Used on a Card with Special Postmark:

Germany: Welfare - Town Musicians of Bremen (2017)

On matching Cards with Special Postmarks:

Self-adhesive Version from Coil:

Used on Covers with Special Postmark:

Belgium: Gaston (2017)

Nothing else needed.

On a matching Card with Special Postmark:

United Kingdom: Mr Men and Little Miss (2016)

USA: Wonder Woman (2016)

Not needed in mint condition.

Used on Cards:

[Appendix] France: Les Légendaires (2016)

Used on Card with Special Postmark:

Poland: Witcher (2016)

Israel: Fables (2016)