One way to sponsor our project is by buying an original miniature Gratitude Ball on a Certificate of Appreciation.  These are unique artworks with a sort of wizardly quality to them.  Cut out the Gratitude Ball if you like and frame it!  They come in A4 size, (approx £30), A3 size, (approx £100).  The certificates are printed "on high quality papers by industry leading printing machines", according to the printers, who use HP Indigo printers.  Though this falls short of Giclee level printing, it cuts the prices below in half, and combined with maximum lightfast acrylic artwork, these are an very high level product.