IMHO opinion, you should get another mobo and never touch your socket again. There should never be a need to.
As someone has already said, if you run it your socket will certainly get hot enough to burn the wool, leave residue and gases that will fuck the pins up, probably bending them. Cleaning it would be a near impossible task. Velcro is a fantastic idea and is worth the try if you are very careful. Air could push it deeper, hoovers I doubt would do much and you don't have enough years of life left to pick it out with tweezers.
You could try and RMA it for a new one. I know this sounds silly, and might not work, but if you talk personally with the company, it might be possible. The board works fine, and they should have the resources to restore it properly and sell it again. Although it is a long shot.