Step 1: Assemble your sign. My husband used some trusty Gorilla Glue to join four 5 x 18 inch boards together.
Step 2: While your boards are drying, whip up some fabric rolled flowers. There are lots of tutorials online for making them, but you basically cut fabric into strips (mine were roughly 2 inches wide, 14 inches long) and twirl it until it twists in half over itself. Roll the twisted fabric around, hot gluing as you go. It sounds weird, but just look it up. It will make sense once you start!
Step 3: After my boards were dry, I whitewashed them with some white acrylic paint.
Step 4: Once the paint is dry, hot glue your flowers to the sign. If it helps, you can trace out a design in pencil. I eyeballed mine and adjusted my flowers until it looked just right.
Step 5: Find a pretty place to display your new art!