PUBLIC MARKS from dominoes with tag letter

# They're original, colourful and attractive. # All you need to send one is a printer, an A4 or Letter-sized sheet of paper and a stamp. The letter is the envelope! It holds itself closed, secured by the stamp - so it doesn't even need any glue. You use the entire sheet of paper, so there's nothing to cut either! # They're light. Ideal for international mail. # Letter-writing is good!