Okay I started by fooling around with mapzone 2.5 and made two weird decals: made up a weird model: add a random height pose and ease of path constraint to the model and put 5 on a path then did motion blur first with 5 passes at 50% 3passes at 25% 2 passes at 10% then none. rendering each test separately then using the new NLE in v15 merged them into the mess I posted here
Click to view attachmentif you scroll you can see the effect of the motion blur every 10 frames at the beginning
I was inspired to do this ...

after visiting NG's new website
remember this was just a test..