Wooden Swing Seat - Large Heavy Duty 3 Seater Outdoor Garden Swing Bench | eBay £400
I like the idea of a swing on a frame under a tree instead of attached to the tree. With Oliva engraved
Garden swing seat
Kingdom Arc Garden Swing Seat - very cool, but could DIY with PVC? Maybe not the support frame.
DIY Swing redo (links to commerce page) - just grabbing the idea.
Bespoke arbour with swing from The Garden Trellis Company...
Brittany Morgan (via Bloglovin.com )
Garden Swing Chair - You can get swings like this from granit. We'd need sturdy trees or a custom built stand.
Swing Seat - Wooden Garden Swing Seat With Wood Frame - 2 Seater Swing Bench | eBay £350