I made this prototype puzzle in 2009 after seeing poloquebec's (forum username) dummy Void Skewb. He had cut holes in each of the six squares but had left the core as it is. This meant when you looked inside his puzzle you could see the central spider. I decided to take it one step further and modify the core so the spider was no longer visible. I did this entirely by hand and no new pieces were required. It is identical in size to a normal Skewb and regular Rubik's Cube. Naturally I used slightly altered Skewb stickers.
I am calling it a prototype because it was really just an experiment to see if it would work. I haven't bothered to clean it up much and there are some score lines visible on the squares. If I can improve on my construction method a little I will probably make a few more and finish them properly. Surprisingly the puzzle works very well and keeps the pleasing click sound of a regular Skewb.
Since the core is very difficult to make it is likely that I will use 3D printing if I make more of these. This for me would be a first unless you count my Gigaminx copies. The rest of the transformation though would be done by hand.
There has been some argument about my naming of this puzzle. Some people believe a true Void puzzle should not have any centres at all. They are welcome to there opinion but there are no rules or guidelines for this type of thing and I believe my name is appropriate. Especially since a Skewb without centres is highly unlikely to ever be made. Also, anyone who knows the Skewb's mechanism will understand that making this puzzle was not just a case of whacking six holes through it. It is far from a trivial transformation.
The bottom two photos show Erno Rubik and Uwe Meffert examining my puzzle at the 2009 Dutch Cube Day. Uwe went on to mass produce the puzzle along with a pillowed version.
Factory made versions are available below.