Possible Clues:

• Artistic design of glass or stones
• Fancy floor, maybe
• Design of small coloured squares
• Pattern made with coloured peices of stone
• The sort of law that''s all in little bits
• Inlaid stone decoration
• Just picture all those bits in such a Jewish manner
• Subway tunnel art, maybe
• Design made up of small pieces
• Artistic design: one of Grandma's?