One of the other families in our co-op has a swing in their playroom and it is in constant use when we are there. I was intrigued but unsure if it was feasible in our very different space and ceiling height. However, when Peter's OT pointed out how much more calm he is when he is swinging, we made the leap to figure out how to make it work in our space. Jonathan did a fantastic job of researching hanging options and then spending the time up in the attic to drill and reinforce the studs for the hanging eye bolts.
The swing from Hearthsong is big enough for all three of the kids at once and easy for them to get on independently, both of which were big concerns as we searched for suitable options. The upper cloth "cozy house" is a stretchy material that gives a lot of opportunity for reinforcing proprioceptive awareness, deep pressure and heavy work--all that just from some swimsuit material!
As long as they are just swinging rather than bouncing around, one can be in the cozy house and one on the swing at the same time.
Bonus is that we hung in not-quite-centered under the sky light so that they can swing and look as the stars at the same time.