Abalone shells make excellent vessels for containing smoldering herbs and incense. These shells, used for traditional smudging. They are ideal for burning sweetgrass and sage.
Cedar is used in smudging for purifying the home/space and can chase away bad spirits. Place some in smudge bowl/abalone and burn. Blessed and smudged.
Palo Santo, "Holy Wood", is found in forests of South America and is used for incense, aromatic oil and indigenous medicine. It is burned for cleansing and healing properties.