Dr Seuss The Grinch Magna Tiles Naughty or Nice 19 Piece Set New. Hard to find - Dr Seuss The Grinch Magna Tiles 19 Piece Set - Brand new - Double sided tiles - This set helps child to develop an understanding of recognizing opposites, imagination skills, and creative thinking. - Compatible with other Magna-Tiles sets Build your set with The Grinch Mangatiles Brand new in original packaging Fast shipping No holds