Cork board: Goodwill: $2.99 (I painted the frame back, then put it inside another gold picture frame salvaged from the trash)
Yellow wooden bowl: An old decoupage project by my grandfather
Black and yellow painted wooden container: Value Village, $5.99
Brass mail holder: Value Village, $5.99
Upholstery tacks/decorative nails: Vintage, inherited and (for me), free
I used an ice bucket for the tulips, which was given to me by my sis, so I can't say what the price was, but they're easy to find, and inexpensive.
Alas, my camera is so crappy, you can't tell that my walls are butter yellow. It helps with the effect. Really. It does.