You could wrap a chunk of pool noodle or, make a new one pretty easily, with a bit of luan, a piece of foam, and some velcro. Mines still in pretty nice shape, 16 seasons in, surprisingly. But, so are my cushions. Back on the day, we were allowed to buy and send our own fabric to the upholstered. I chose a commercial grade, stain resistant coated fabric, and that has possibly made a difference.
Sorry if I "gumped" you.