The following is a list of various mythological objects described in Hindu literature.
Armour
Karna Kavacha - The armour of Karna that was granted to him by his father Surya at birth, offering him virtual invulnerability. Shiva Kavacha - The armour of Shiva which will make its wielder invincible.
Vessels
Kalasha - the kalasha is considered a symbol of abundance and "source of life" in the Vedas. It is referred to as "overflowing full vase" in the Vedas. The kalasha is believed to contain amrita, the elixir of life, and thus is viewed as a symbol of abundance, wisdom, and immortality. The kalasha is often seen in Hindu iconography as an attribute, in the hands of Hindu deities like the creator god Brahma, the destroyer god Shiva as a teacher, and the goddess of prosperity Lakshmi. Kamandalu, kamandal, or - an oblong water pot made of a dry gourd (pumpkin) or coconut shell, metal, wood of the Kamandalataru tree, or from clay, usually with a handle and sometimes with a spout. The kamandalu is used in Hindu iconography, in depiction of deities related with asceticism or water. It is, thus, viewed as a symbol of ascetism in Hinduism. Adi Shankaracharya’s ashtotaram hymn praises Shiva whose hand is adorned with the kamandalu. Other deities like the fire-god Agni and the preceptor of the gods, Brihaspati, are depicted carrying the kamandalu. Kapala - (Sanskrit for "skull") or skullcup is a cup made from a human skull used as a ritual implement (bowl) in both Hindu and Buddhist Tantra. Kumbha - a type of pottery in India. It symbolises the womb, thus it represents fertility, life, generative power of human beings and sustenance and is generally associated with devis, particularly Ganga.
Akshaya Patra - Akshayapatra (means an inexhaustible vessel), is an object from Hindu theology. It was a wonderful vessel given to Yudishtira by the Lord Surya which provided a never-failing supply of food to the Pandavas every day. Akshaya Tunira - the inexhaustible quiver of arrows of Arjuna, offered to him by Agni.
Flags
Garudadhvaja - The flag of Vishnu. Indradhvaja - The flag of Indra. Kakkadhvaja - The flag of Jyestha. Kapidhvaja or Vanaradhvaja - The flag of Arjuna. Makaradhvaja - The flag of Kamadeva. Kukkutadhvaja - The flag of Kartikeya.
Flora
Plants
Ausadhirdipyamanas - These are healing plants capable of phosphorescence. They are used for healing and rejuvenations in battle. These are used by the Ashvins. Eraká grass - The grass that grew from the cast away powdered iron-bolt belonging to Samba. It was used to destroy the Yadu race, as it miraculously turned into an iron-bolt in the hands of its wielders. Kusha grass - The Kusha grass is specifically recommended by Krishna in the Bhagavad Gita as part of the ideal seat for meditation. Padma - The lotus plays a central role in Indian religions such as Hinduism, Buddhism, Sikhism, and Jainism. Hindus revere it with the gods Vishnu, Brahma, and to a lesser degree Kubera, as well as the goddesses Lakshmi and Saraswati. They are regarded as an exemplar of divine beauty and purity. Saugandhika flower - This was a lotus flower that was sought after by Bhima (for Draupadi) during the Pandavas exile. It was found in Kubera's pond. Sanjeevani - Sanjeevani is a magical herb which has the power to cure any malady. It is believed that medicines prepared from this herb could revive a dead person. Tulasi - The holy basil is a sacred plant in Hindu belief. Hindus regard it as an earthly manifestation of the goddess Tulasi; As the incarnation of Lakshmi, she is regarded as a great worshipper of the god Vishnu.
Trees
The Tree of Jiva and Atman - This tree appears in the Vedic scriptures as a metaphysical metaphor concerning the soul.
Amalika - The veneration of the amla tree in particular is due to the belief that the god Vishnu resides in and near the tree, particularly on Amalaka Ekadashi. Ashoka tree - The ashoka tree is closely associated with the yakshis, the nature spirits. Atti - In the Atharvaveda, the fig tree is given prominence as a means for acquiring prosperity and vanquishing foes. Bilva tree - This is a sacred tree and used to worship Shiva. Kadamba - The kadamba is mentioned in the Bhagavata Purana. In North India, it is associated with Krishna while in the south it is known as "Parvati’s tree". The kadamba tree is also associated with a tree deity called Kadambariyamman.
Parijata - The divine flowering tree with blossoms that never fade or wilt - taken to Indraloka by the devas. Sala tree - In Hindu tradition, the sala tree is said to be favoured by Vishnu. It is also associated with salabhanjika or shalabhanjika (also known as madanakai, madanika, or shilabalika).