Nimixu Prints - metal posters, aluminium prints, personalised jewellery, keyrings & more. Have unique metal posters on your walls with metal prints. Using their special printing process, Nimixu create pictures that are made to last. Choose from their range of pre-designed images or from the personalised canvas print option (like a canvas but higher quality due to it being printed onto metal) where you upload your own photograph to be printed. Nimixu metal posters are available in approximately A5, A4 and A3 sizes.