The puppet series The Adventures of Mirr-Murr the Tomcat is featured on Magyar Posta’s numbered special souvenir sheet released on the theme of cartoon and fairy tale characters. Forty thousand copies of the souvenir sheet designed by the graphic artist István Weisenburger were produced by the banknote printing company Pénzjegynyomda Zrt. The new issue will be released on 3 June 2025. It is available from Filaposta, philately specialist services, designated post offices and www.posta.hu. The puppet film series The Adventures of Mirr-Murr the Tomcat was completed in 1975. The puppet series, a sequel to The Adventures of Little Donkey, presented a new main character. In Hungary, the puppet film has been shown on MTV1, MTV2, Duna TV and M3. The screenplay was written by István Csukás, and the puppet series was directed and designed by Ottó Foky. The music was composed by Zsolt Pethő. Judit Halász’s magical personality and wonderful voice introduced the series to the immortals of Hungarian puppet film history. We follow two curious stray cats, Mirr-Murr and Oriza, on their adventurous journeys. The puppet film begins with Little Donkey finding out about the wardrobe, the bed, the chair and the chandelier, and, of course, meeting Mirr-Murr the Tomcat. Together, the two protagonists go hot-air ballooning, play sea battles, read books and also make friends with Kasper, Bóbice and Csinnadratta the lead soldier, with whom they discover the poultry yard. Mirr-Murr the Tomcat ends up in Ödön Slukk’s coat pocket when he leaves the others by chance. He manages to get out and then makes friends with another stray cat, Oriza. The two cats are put to the test in various ways, helping Pál Ploma and joining a circus troupe. The three stamps of the special souvenir sheet feature the three central characters of the story in this order: Little Donkey, Mirr-Murr the Tomcat and Oriza. The design of the souvenir sheet’s frame shows Mirr-Murr taking a photo of the characters in the episodes. Mirr-Murr the Tomcat and Little Donkey appear on the special first day cover. The main element in the imprint of the special postmark on the first day cover is a portrait of the title character. An interesting feature of the souvenir sheet is that further information about the topic can be accessed after scanning the QR code on it.