MacBook Pro Retina cable holder/dock
modeled to retain cables snugly. cable passthrough are all on one side which makes the model flex more than might be desired; a revised model will alternate sides for each cable. even so, I've been using the first print daily for a full year with no issues.
display cables used: http://amzn.com/B003TSTDHQ
I changed USB cables after modeling this and had to shave some insulation off to make it fit. I don't have a link to the one that fit best, sorry.