The cube shown above, known as the
element cube, combines every 'collectible' element on Earth. Regarded by its creator as the world’s largest alloy, the cube is fashioned into a minimalist decorative ornament that could sit on your desk or coffee table! It consists of 62 elements (shown below) and measures 5 cm by 5 cm; it ships with a material analysis report - that presumably indicates what percentage of each metal is contained in the alloy - and offers custom engraving as an extra option.
Source: http://www.sciencealert.com/the-element-cube-combines-every-collectible-element-on-earth-into-one-weird-looking-cube