Released In: Fall 2004 (3-pack), 2006 (single) and 2009 (comics uniform in 6-pack).
Size: 4" tall
Notes: "From Mattel's Justice League Unlimited action figure line. Like most Justice League figures, this has five points of articulation. This figure can be found on both the orange and purple carded DC Super Heroes packaging" (DC Collector Universe).
It was first released as a 3-pack deal along with Batman and Hawkgirl. This Elongated Man action figure, Green Arrow and Dr. Fate were the first superheroes to be released after the big 7 and Aquaman.
It was released again as a single pack in 2006, as part of the 4th wave, and then again, as part of a six pack with his satellite era red uniform (which didn't appear in the series) in 2009.
It looks great; however, the character looks taller and slimmer in the cartoon. This figure has a huge chest for someone called "The Elongated Man". I have no clue about the weird weapon.
Released In: November 2004
Size: 6 3/4" tall (with a 1" neck extension that makes him 7 3/4" tall)
Accessories: JLA base and is
Notes: Multiple points of articulation. Packaged in a 4-color blister
DC Universe Classics
-- Is still not going to happen...
However, I see that the idea at least has a number of enthusiasts. They started a surprisingly large thread at the Fwoosh action figure forum:
Elongated Man Support Thread
Their main concern seems to be that the Elongated Man is essential to complete the JLA roster of the satellite era. I'd add that he's also a JLE and Super Buddies essential and a notorious silver ager, handled by the big names of that era: Scwartz, Broome, Infantino, Fox and then Wein.