Well, dangitall. This wasn't even close to what I had in mind, but it's late and this'll have to do. Maybe I'll try again another time for better blur... preferably with thicker dominoes on a more stable surface!
@idonotsqueak I can't, either! Which is why I only took a couple of shots! Thin dominoes, unsteady surface, joyful dogs and unsteady hands meant I wan't going to have lots of do-overs! It took me a LONG time to finally get a set up as I would get near the end, I don't know how many times, and down they'd all fall... aaarrgh!
... I've had that happen though for sure... where something in mind doesn't turn out like planned.