Ganesha, also spelled Ganesh, also called Ganapati, elephant-headed Hindu god of beginnings, who is traditionally worshipped before any major enterprise. As the god of beginnings, he is honoured at the start of rites and ceremonies. He is widely revered, more specifically, as the remover of obstacles and thought to bring good luck.
Lord Shiva, the father of Ganesha, is one of three supreme Hindu Gods. Goddess Parvati, popularly known as Shakti, the power, is the mother of Ganesha. The Goddess is considered to be the centre of whole of the energy prevailing in the universe. The family also includes his brother, the god of war, Kartikeya.
Just like most Indian deities have their Vahana(Animal Used For Transport), his vehicle is the large Indian bandicoot rat, which symbolizes Ganesha’s ability to overcome anything to get what he wants.
Devotion to Ganesha is widely diffused and extends to Jains and Buddhists and also in Nepal, Sri Lanka, Tibet, Myanmar, Thailand, Indonesia, Singapore, Malaysia, Philippines, and Bangladesh and in countries with large ethnic Indian populations including Fiji, Guyana, Mauritius, and Trinidad and Tobago and some other African countries.
Every year around the end of August or start of September is a 10 day Ganesh festival named as Ganesh Chaturthi which is widely celebrated throughout the country(India). During those days, people bring idols of the Ganesh to their place and worship it daily and sharing sweets and especially making laddoos which the God loved. After the 10 days is the Visarjan where people dance on high music and get on the roads to finally let go of the statue in the sea and await the return of the God for the next year.
I hope this stamp suggestion gets honoured and I’ll be attaching a few pictures of the god for reference(especially the last animated picture is so adorable, wish something similar can be created with 4 hands on the God):