Thanks WinGnut
I bought the fittings from the first link posted by Shadow678.
Click on the fish tab.
Go to Aquriums, Tanks and Supplies.
Click on Plumbing Supplies.
Click on Ball and Check Valves.
Click on Flexible Ball Socket Joint Tubing & Accessories.
Or try this link.
Flexible Fittings
These are the best prices I found online for these types of flex fittings. If you're going using a lot of these fittings and tubing, it may be worth getting the hand pliers. If not, you can still make adjustments or pull the joints apart with your hands, and press the joints back together, but it's pretty hard to do.
Machine shops have been using these types of adjustable flex tubing for years for directing machining oils and coolants to the parts being machined. Just so happens they work really good in our hobby too. They also make this stuff in 1/4". Check out some of the manifold valve assemblies - pretty cool
FYI link:
Loc-Line