This is a shapemod to a 2x2x2 cube to produce an interesting shape-changing puzzle. As well as these parts, you will need to buy a Eastsheen mini (24x24x24mm) 2x2x2 cube which will have to be slightly truncated (cut) across two corners to fit the extensions. The stickers were made by Oliver's Stickers and can be bought
here, or you could cut them yourself from adhesive backed vinyl.