a c e g i b d f h j k m o q s l n p r t u w y v x z These constitute the 1st domino set a –z, the following alternate picture clues. a b c e g i k d f h j l m o q s u n p r t v w y x z These constitute the 2nd domino set a –z, the following alternate picture clues. a c b d e g i k m f h j l n o q s u w p r t v x U.F.O? Who me? y z I have colour co-ordinated the letters for each set to distinguish between them but they can easily be altered to the same colour if you want to merge them into one bigger pack of dominoes.