LibGDX Load 3D Models

In LWJGL I had to write a .obj loader class to load up my model files which I could then draw with GL_TRIANGLES or GL_POINTS using glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); in my render before rendering the model. I then went on to add simple lighting and then a shader for normal mapping. I would really love to port this over to LibGDX and then write a tutorial on it because there is such a lack of 3D LibGDX tutorials. My only problem is that apparently I have to use a .png to load a model in LibGDX. How would I load a 3D model in LibGDX and display it without using a texture?
I looked for methods to return the vertices of the .obj in the LibGDX obj loader code but found nothing. Should I code my own obj loader?

I am watching these tutorials for lwjgl: http://www.youtube.com/watch?v=8D1EET8fUtE

I would like to load up and display the rabbit like he has.

More 3D LibGDX tutorials:
http://blog.xoppa.com/

Also check out the tests whenever you are lost:

I’ve already read the xoppa posts but not the g3d tests. They all seem to use textures though after a quick scan of them…

Edit: I know about modelBuilder.createBox, but that isn’t exactly very performant.
Edit2:
I have got it working now :). In my previous code I had some weird stuff going on but now it works.