Stuart VK2FSTU has found the following interesting project:

2M Extreme Dream Beam

According to the website:

Have you ever hit a repeater 100 miles away with 30 watts at only 40 foot with clear signal reports?  Can you even hear a repeater 100 miles away?  This antenna can do it and even more.  Gains have been signal measured against a dipole up to14.5 dbd* on seven element versions with excellent rear rejection.  Five element versions have shown about 12.5 dbd*.  Nothing seems as rewarding as building your own antenna and getting great reports.

The EXTREME DREAM BEAM is one of the most fun antenna builds around.  Our free plans and video make it easy and fast, perfect for ham radio clubs or the antenna builder enthusiast.  The best part of building your own EXTREME DREAM BEAM is the performance when you are done.  Not only do you have great fun making it, but it really out performs very costly store bought designs.  5 and 7 element plans are shown in the videos and in the free plans section.

The site also features additional projects and videos, check it out.