So I made it new today.
2 rectangles for the front and back of seat
2 thick strips for the top straps
4 thin strips for the seat ties
After that I put my batting in between the front and back pieces and pinned all my ties and straps were I needed them. I zig-zag stitched all the way around the the edge. Then I made zig-zag stitches straight through the fabric to make a seat and a little head rest.