Hey thanks for taking the time to work out the process. Your method didn't work for me but I kept trying different ways based on what you said and this did work for me.
-Use Jody figure
-T Pose
-Export OBJ - With Current Pose
-Import OBJ into Blender
-In Blender, model something on the figure
-Reset Scale/Rotation on the model
-Export the model as OBJ
-In CC3 go to Create/Accessory, and select the new model
-Done!
75% of original size (was 670x19) - Click to enlarge