IWOOT - Stuff you really, really wantLiven up your daily cuppa with the Mermaid Heat Changing Mug. When cold the mug is glossy black with a pale pink mermaid image. Add boiling water and watch as the mug magically turns into a pale green base with white and pink doodles, stars and shells and the phrase 'I'm secretly a mermaid'. The mug is a great gift idea for anyone who loves the magic of a mermaid.Features:Mermaid Heat Changing MugCold mug is glossy blackAdd boiling water turns pale greenFun gift idea