Ok, I've been saving this one. Not saving but this swing just came out of winter storage so I couldn't take any pictures. I built this porch swing 11 yrs ago. And I used my Domino 500 in the usual way for joinery. It's Norm Abram's design and I used sipo dominos to help stand up to the weather.
But I also used the Domino to cut the mortises for the back slats. First cutting the mortises then milling the back slat stock to the right thickness and then I think I used an 1/8" round over bit in the router table to fit the corner curves of the mortise. Worked out great and happy to say, it's still holding up after all these years and the domino joints are just as tight as the day I glued them up.