If you attended the July 2014 ALERT In-Person meeting you saw a working model of the Folding J-Pole demonstrated by Steve Smith W9GPI.
Ladder Line J-Pole
If you attended the July ALERT 2014 In-Person meeting you saw a working model of the Ladder Line J-Pole demonstrated by Richard Carlone KC4RAC
Lightweight Telescoping Ladder Line J-Pole
Bob Hejl W2IK published this article in 2005. Larry Zimmer W4LWZ built one and we showed it off at the August 2014 ALERT meeting.
Two Meter 3D Folded Loop Antenna
Tom Muye AC4TM built one of these and reports that it works well! Tom says that "tuning" the antenna before final soldering of the copper is essential.