These hexagon sound absorbing panels are made of wood slivers, cement, and water. Träullit Hexagon Panels by Form Us With Love -- seen on: 19 Ideas For Using Hexagons In Interior Design And Architecture //
"Aiming for a coastal bedroom decor? Paddles emphasize the sea/beach theme and make for great wall decorations. Different size paddles can also be arranged and used as a headboard in a coastal bedroom." Other headboard ideas at the link.