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A personal favorite from my Etsy shop https://www.etsy.com/listing/256458049/rustic-corrugated-tin-christmas-trees

Set of 3 rustic metal Christmas trees. Made from rusty corrugated and a mesquite trunk with a touch of glitter that resembles frost. A rusty star adorns the top.

The natural aging of these sheets of corrugated metal reveals hues and extraordinary colors. The interleaved arrangement of the sheets generate an interesting effect to the ceiling breaking the monotony of the rectilinear lines own of this material - this would be cute in a pantry.

Amiee This might be an inexpensive alternative for the ceiling. Reclaimed Rustic Metal Roofing used for ceiling tiles. This would be great for a rustic bakery/ restaurant.

Before building a barndominium, it's good to know the many types of barndominium floor plans

13 Awesome Barndominium Designs to Inspire You