Floating shelves look fragile to the naked eye because of the way they sit on the wall. All the workings of the brackets are hidden so it seems as though they are floating there on the wall. In reality they are usually much stronger than other types of shelves which are supported with traditional brackets and screws.
This is a beautiful decoration for the house and a way of introducing a piece of nature inside. To make a similar decoration you need a piece of driftwood, hooks, nails and some air plants that don’t need soil. You should first clean the wood to get rid of the eventual bugs and unwanted bacteria and then screw the hooks to hang it on the wall. Add the plants and it’s done. The plants need either to be placed in water once or twice a week or to be sprayed with water occasionally.