Read on for my instructions on how you can make one yourself.
Old piece of wood
Place your jar where you would like it to sit on the wood and mark the top and bottom with a pencil. Lift off the jar and find the center behind the jar where you will attach the piece of belt. Mark that with a pencil too.
Drill a hold on each side of the pencil mark about an inch apart.
Measure the circumference of the vase and cut your belt that length. Then, drill a hole on the ends of the belt about a half inch from the edge.
Screw the belt into the holes you drilled into the wood.
Hang wood from the wall, fill the jar with water and fresh flowers (or in this case mint) and enjoy!