Here's how I spent my Saturday: building this for work, as a "teaching aid." Can anyone think of any I missed (US-only practice, please)? Items in blue tape are back-ordered, or I just haven't added them yet. I'm in a quandary as to how to label each connector. I'm thinking of just printing an 8.5"x11" picture with the labels and keeping it in a slot in the back. That way, we can also use it for testing and interviewing applicants. Constructive criticism is always welcome and appreciated.