These are just a few of the configurations I made from the same lamp, with the same channels.
You can see how durable the channels are – bent and re-bent over and over with no structural change! Very hard to “screw-up”, since you can “erase” your mistakes and start over.
And, if you want to change the color of the channels, no problem – just paint them with a high quality paint before (preferable) or after you’ve created your piece. The same applies to the cement base.