Tube Wall Shelves which consist of a shelf and a vase put into felt. I think that these shelves inspired this mason jar flower shelf. The supplies are 1″ x 4″ board, a pencil, five mason jars with lids, spray paint, a hot glue gun, 20 1/2″ sheet metal screws, a drill. Cut the board, measure the width of your board and draw a straight line length-wise down the middle of the board with a pencil. Space the mason jar lids evenly on top, leaving a little extra room on the ends, and trace around the lids and attach them. First, apply hot glue around the edge of each one and press down until dry. Next, drill four 1/2″ sheet metal screws into each lid, about 1/4″ from the top, bottom, left, and right edges. Read the rest of the tutorial here, finish the project and enjoy!