Is "Block color" possible in unity?

Basically I have a series of Cinema 4D models which are different colors but each model is only one color, a kind of "pop art" style I suppose. The problem is when I import them into unity it adds shading to the model. Is there any way that I can turn this "shading" off?

For an idea of the kind of effect I am looking for I have included the below image: alt text

Thanks in advance!

If you don't need alpha or textures, use this:

Shader "Solid Color" {
    Properties {
        _Color ("Main Color", Color) = (1,1,1,1)
    }
    SubShader {
        Pass { Color [_Color] }
    }
}

You need an Unlit shader. Here, try this one I use quite often, that I found on the Unity forums:

Shader "Unlit Diffuse Alpha" { 
Properties { 
    _Color ("Color Tint", Color) = (1,1,1,1) 
    _MainTex ("Base (RGB) Alpha (A)", 2D) = "white" {} 
   _Cutoff ("Alpha cutoff", Range(0,1)) = 0.5 
} 

SubShader { 
   Cull Off 
   Tags {"Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="TransparentCutoff"} 
   Pass { 
      Alphatest Greater [_Cutoff] 
      AlphaToMask True 
      ColorMask RGB 

      SetTexture [_MainTex] { 
         Combine texture, texture 
      } 
   } 
} 

}