When I need a creativity boost, on the eclectic use of fabrics, I pull out Ruth's books. Might be good to take a look before your shopping trips to the thrift stores.
Inspiration or source for this was a picture of a daffodil in a garden catalog. This is daffodil season, rejoice!
It's not a sunflower. Haven't done that yet. Visually reproducing the depth in the trumpet wasn't in my ability.