Punchbag Modelling & Unwrap Basics. Note that you are expected to invest time into ensuring that the punchbag looks visually interesting. You may also consider using heavy nylon straps as apposed to chains, if you prefer.
This video shows the basic use of the Nvidia normal map filter for Photoshop. The video demonstrates the ability to create detail in your normal map using reference textures and how to combine them with hand painted details to produce a normal map for your assets. The last section of the video talks about corbusier chairs and punchbags etc. These assets will not be an option in your ICA, so ignore those comments.