Anything? how about a non pillowed 7x7?
Hasnt this already been done?
If I can remember rite, it just wasn't suitable for speed solving.
Someone want to find the link for me please?
edit: here we go: http://etienne.deforas.free.fr/rubiks/7x7x7/img_36.jpg
Oh, I thought I read on the wiki that it was impossible. Nevermind!
It's impossible if the squares are all the same size (and square, unlike the V-cube 7), the cube doesn't bend or stretch, and the middle pieces don't fall out.