I did the Civil War BOW on Barbara Brackman's blog and that was great fun.
I did one BOM at our LQS called "Christmas Windows" - there's a photo album of the finished applique blocks in my profile. I haven't put the plain ivory sashings on it or assembled it, but all the really time-consuming part is done.
I did another one at the LQS called "Lady of the Lake" and it's basted and ready for me to start quilting - it's about 116" square, though, so I'm dragging my feet. Wrestling this much fabric through a domestic machine makes me tired just thinking about it.
The last BOM I joined is "Baltimore Christmas" from Stichin' Heaven - I haven't even opened the first package and I think I have seven of them piled up, now. I'm not signing up for ONE MORE BOM until all of these are finished. My studio is already looking like one of those Hoarder tv shows.