NAN-NBC174 A miniature Unicorn made with micro-sized building blocks. This construction set will develop problem solving skills and spark the imagination. ... We computed the price history for the Nanoblock NAN-NBC174 Unicorn, Multi with Amazon price historical data. This item is manufactured by nanoblock. It is sold in the category Toys & Games. Amazon have it for sale at 9.99 £. We noticed a higest price of 9.99 £ and a lowest price of 5.00 £.