Its the Hunting Lodge Thermochromic Coffee Mug. Paying homage to the sexy strip pens (floaties) that 'that' kid used to have in school we have developed a mug that would make H Potter give up the wand.
Just fill it with a hot drink of your choice. You know the rules, Baileys coffee if its before midday Irish after that and watch the magic happen. Everyones favourite Street Couture icon revealing herself before your very eyes.
The mug was created using technology designed by NASA just for HL.
But it works.