Vegetable Garden so smart and artistic. Did ya notice that this raised bed is not more than two feet deep? That's very savy because of the limit one can bend over and interact with the farthest reaches of a raised bed.
Mow strips can be made from any solid material used to separate the lawn from a planting bed. They allow a law mower to trim the grass all the way to edge of the lawn without having to use a string trimmer.
Brick pavers make a simple, handsome border and work well as edging material. They're ideal for a wide border that keeps grass out of the garden, yet allows flowers etc. to spill over without intruding onto the grass.