At Oskars Twisty Pizza Party (the evening before DCD) Frank played with David's Fun Block.

Andreas told me: It can be viewed as shape variant of the Fully Functional Siamese 2x2x2.
Last week I designed the 12 extensions (simply triangle prisms) and glued them onto the Fun Block.

It was a little bit difficult to make the cubies to real hexahedrons. I fixed this problem with gluing small (1mm) plastic sheets on top and bottom. Here is the result

Video on youtube: http://www.youtube.com/watch?v=TMLB-ue1Fg0

Looks good.

As long as you copy existing things I can keep up adding them.
Go forward this way.

There is nothing useful I can add.