I couldn't afford an Apple iMac, but I still wanted the benefits of an integrated computer solution on my small desk. After spending some time with "the google", I found a bracket that mounts a mac mini to the standard lcd vesa monitor holes (see link below). Priced at $50, I sought out to create my own with some spare aluminum in my garage.
1. The VESA mount specs are: M4-.7 Screws spaced at 70mm.
2. Rubber stops protect from scratches as well as prevent the Mac Mini from accidental horizontal movement.
3. Rubber washers between the bracket and the monitor will help with surfaces that are not flat.