In 2008, several countries issued stamps utilizing unconventional formats or methods of production.
Iceland released a series of stamps depicting the Imagine Peace Tower, which is dedicated to the memory of Beatle John Lennon. The stamp is printed in a traditional offset format and then overprinted with phosphorus in silk screen which causes the picture to accumulate light and then glow in the dark. When exposed to ultraviolet light, a picture of John Lennon appears on the stamp.
Lithuania issued the first drop-shaped postage stamp for the EXPO Zaragoza 2008 Exhibition, the theme of which was "Water and Sustainable Development".
Finland issued a miniature sheet dedicated to Alpine skiing. The sheet has an illusion of movement thanks to the imaging and printing technology used.
Hong Kong issued a set of special stamps featuring jellyfish. For the first time in Hong Kong philatelic history, the stamps are being printed with a glow-in-the-dark effect.