I saw my first “sequins” book only two years ago. The first book I saw produced only two colour changes, months later a book had three or four colour changes. Now I have seen books when rubbed produce “WORDS”!!!.. We have sourced contacts that can produce rolls of cloth with customized, multicoloured, sequin patterns. That we can then us to “wrap”, hardcover/case wrapped books which result in a highly unusual product. The actual “sequins” come in literally scores of different colours, sizes and shapes.