here is one of my tutorial for 3D object. (3D Glasses Freestyle)im upload the tutorial on youtube: https://www.youtube.com/watch?v=uxuLuicdlDs&list=PLjyiWW2QlmFwXcacgfcrwHWU2jNMYd37C

Most users are not going to be interested in creating a 3D model of a pair of sunglasses.  How about creating a video where you model am upscale two story house with an intricate roof?  Fully furnished would be nice too.  Include all doors, windows, throw in some appliances and don't forget the landscaping.  Now that would be worth watching.