Hi Folks!
Can anyone make a moebius strip type thing with two twists? I have absolutely no idea how to do it, as I don't know nurbs--only solids. And I haven't used a 3d prog in ages (it's amazing how much you forget)...

....
It's simply a long strip twisted twice and then joined at the ends. I did it with two strips in different colors taped together so I could distinguish the sides, but in TS I would like to make a single strip with a bit of thickness and a different color on each side. Any suggestions? Here's a quick model:
Thanks!
Janet