A recent idea I have had is to cut typography into cubes for my poster design. The text could cover the whole poster design, or part of it with extra text printed on top. After the obvious search of "cube art" on Google - I came across this. Cubecraft.

I wouldnt really class this as 'art' in the same league as Peter Hellesen, however this is a different approach to paper folding, similar to Origami. These particular designs are quirky and childlike in comparison to other paper sculptors such as Richard Sweeney.