More to explore:
bench seat cushion tutorial
baby stuff that is GENIUS! by carlasisters
How to Upholster a Bench Seat Tutorial
how to make a bench
How To Upholster a Bench: A Step-by-Step Tutorial That Makes It Easy!! (including corners, and using hot glue!) Sally McWilliam Froman
Great tutorial for bench cushion. And she uses shower curtains for fabric, which is genius.
This is amazing and genius.
Piped Bench Cushion
Bookshelves out of curtain rods and fabric, genius!
cushion tutorial for everything from benches to window seats to daybeds