Option 1: Resize PVC pipe to make a custom adaptor

I picked up a plumbing fitting yesterday and see the dust port on the saw
is just smaller than a 1-1/2" pipe. And a 2" plumbing pipe is about the
same size as my shop vac hose.

I haven't tried it yet, but I think a "Fernco" style coupling would make
the transitions. They're basically just a rubber connector with a band
clamp at each end. I'm planning to pick one up the next time I run to town.
It'll give me something to play around with...

Notice how badly designed the Delta 10" miter saw dust port
is; sawdust is flung everywhere -except- in the direction of the port.

Yeah, I don't have a lot of hope for the dust port, but figured it was
worth a try.

You'll probably end up with a DIY hood

Maybe. I'm still debating whether to even bother with dust collection
around the miter saw. It would require a lot of duct work to make it
happen, and from what I've read it's not very effective anyway.

Anthony