Aquadoodle's My First Discovery is the perfect solution for keeping kids entertained on the go, with none of the mess you normally associate with paints, pens or watercolours The secret is in the mat Simply fill your Aquadoodle pen with ordinary tap water, run the nib over the magic mat and see the colour appear Any water that does run off the mat, runs clear with no mess, no stains and nothing to worry about. As the drawing dries, designs fade away, ready for the mat to be used again, over and over again.