A fence accessory includes at least two ornament bodies, each of the at least two ornament bodies including a first connecting part and a second connecting part at two opposing ends thereof. The first connecting part of one of the at least two ornament bodies and the second connecting part of an other one of the at least two ornament bodies are configured to be connected to a fence bar and clamped together as one unit. Moreover, each of the first connecting part and the second connecting part includes a hook and a slot at two opposing sides of the first connecting part and the second connecting part. The hook of the first connecting part of one ornament body is configured to connect to the slot of the second connecting part of an adjacent accessory body.