Take this 'poster' for example. South West France is renowned for its gastronomy, and in particular its Duck and Goose products. At this time of year all the supermarkets compete with each other to offer the very best, and most reasonably priced, products for us to prepare our own gastronomic conserves. Duck breasts, legs, hearts and gizzards, are all there; as well as Foie Gras in various qualities.
Personally I buy all my Duck products ready prepared (they're excellent), but I do make a large amount of Pork based Paté each year, into which I put Foie Gras. Any day now we'll start to receive special offer adverts for Pork products as well, but with Lady M about to go away to Blighty, I'll have to restrain myself until she returns; she's become as addicted to the Paté making process as me.
p.s. The only thing I actually bought from amongst these offers was a pack of Duck Sausages (bottom right, upper picture)...... Unfortunately they were NOT as good as expected.