Harrods Magic Drawing Board

老公其中一個妹去咗歐州出差, 係英國的Harrods買咗一個神奇畫板比大仔, 有幾神奇? 睇吓下面就知道喇....

Draw with the stick and all sort of colours appear.  This is re-usable as you can use the stick to erase old drawings.