Recommendation needed for external hard drive enclosure

[miki66]

I was assigned to redesign an external enclosure as my final project. The only criterion is the main body must be made out of plastic and injection molded. So I was looking to buy a study-model which all components can be easily taken apart without actually breaking them. I guess, this simply means hard drives can be taken out and replaced. I would like to reuse it after this project Any idea/comment will be appreciated.