Bootleg LEGO Incredible Hulk, Red Hulk and Grey Hulk Minifigures
My research led me to discover that not only are there Chinese bootleggers making the oversized Incredible Hulk, but they are also making Red Hulk and Grey Hulk variants! I'm pretty sure these are by Decool. There is also a Lele version of the oversized Hulk, and I think ShegYuan makes him too. Probably others as well. The bootleg LEGO biz is a crowded pool indeed!
I was able to get all three for a buck and a quarter each (shipped) off eBay, and about two weeks later they arrived!
As for quality - it's lower than LEGO obviously, but better than anything else you'll find for a dollar-ish.
Post Script, I understand copyright laws etc. are tough to enforce with China, but I can imagine LEGO, Marvel, Warner Brothers etc. putting pressure on eBay, Amazon etc. for allowing these things to be sold on their sites. So I speculate these bootleg LEGO minifigures won't be easy/cheap to come by for long. If you want some, act with some haste...but not too much haste...if there's an eBay auction ending for $5 you can be sure another one will be ending in about 5 minutes and it's only at $3. Shop smart!