Exchange

Parvati gave Vel to Skanda

https://freeglobaluniversity.blogspot.com/search/label/VaticanKaabaStupaLingaTombGurudwara

https://freeglobaluniversity.blogspot.com/search/label/Vel

Skand gifted her Somnandi - Simhamukan Reincarnation as her vehicle

https://freeglobaluniversity.blogspot.com/search/label/Lion

Shiva gave Chakra to Vishnu

https://freeglobaluniversity.blogspot.com/search/label/Chakra

Vishnu gave Kashi to Shiva

https://freeglobaluniversity.blogspot.com/search/label/Kash

In Brahma Marriage to Sarasvati - 

1. Nandi played Drum https://freeglobaluniversity.blogspot.com/search/label/Hand
2. Garuda played Nadaswaram https://freeglobaluniversity.blogspot.com/search/label/Nad
3. Apsaras Danced https://freeglobaluniversity.blogspot.com/search/label/Sara
4. Saravati playing Veena https://freeglobaluniversity.blogspot.com/search/label/Spine

Brahma bestowed her as goddess of  

1. knowledge, 
2. music, 
3. art, 
4. speech, 
5. wisdom, and 
6. learning