Hi Riko - yeah like Mike mentions the first one is a little different using that technique with Flow that Mike cooked up.

The second one is kind of easier - that's using the new Twist command in the latest beta, you can get the latest beta here: http://moi3d.com/beta.htm and there's a new Twist command in there that you can find under Transform > Deform > Twist. You draw an axis for the twist and then enter in an angle for how much rotation you want at the top of the axis and it will twist your object around that axis line.

I'm still working (kind of bit slowly interspersed with some other work) on gathering some more descriptions of Twist.

- Michael