My make this morning has been a bench seat cushion cover.
I ordered the fabric and got the foam cut to size in a local shop, bought some stockinette (as suggested by
@Bodgeitandscarper on another thread) online.
I thought about piping, but would have had to order some cord, so did faux piping, (TopStitching the edges). The back is envelope style, but I've put a press stud in the middle as is a long cushion.
I'm happy enough with it, though I seem to have been a bit slapdash with my measuring. I might one day tidy it up, but no promises.