Check out this set of six 3.5-inch diameter coasters, coloured black with a keyboard design all the way around the edge and a white treble clef (G Clef) in the centre. Vinyl with Black Rubber back. Via auction Piano Keys Treble Clef Coasters [eBay]Tuesday 21st February, 2012 in eBay Finds tagged coasters / decor / mats / piano keys / treble clef by Andy