Deco shell

Dry flowers could be put in or toothbrushes with slim handle. Its nice looking on its own too

The spiritual meaning of sea shells stems from their connection with life, death and rebirth. They house living creatures and serve as protective homes. When a creature dies, the shell remains, often washed upon the shore by the waves. This process symbolizes the cycle of life, death, and rebirth.
Shells have a strong association with feminine energy due to their connection with life-giving ocean waters and their vulva-like shape. This makes them a symbol of birth, fertility, and the nurturing aspect of the female essence.
In Hinduism, the conch shell has significant spiritual and ritualistic meaning. It is associated with the god Vishnu and is used in religious ceremonies in addition to being blown as a trumpet to banish evil spirits.
Sea shells can be used as tools for spiritual cleansing. Some people use them to carry water during cleansing rituals, while others burn sage or other herbs in them during smudging ceremonies to purify spaces and/or objects.
Many indigenous cultures, like the Northwest Coast First Nations, have considered shells as symbols of wealth and prestige. They would use shells to create intricate works of art and jewelry as a demonstration of social status and power.