Mugniyah was killed in a Damascus explosion on February 12th.
According to the Iranian news agency Fars the stamp will be "a cultural message of support from the Iranian people to the Lebanese nation against the crimes of the Zionist regime."
The stamp was revealed in an official state ceremony, attended by the heads of the Iranian Revolutionary Guard, the Iranian minister of communications, representatives of Hamas, Hizbullah and family members of the Lebanese killed in the Second Lebanon War.
Yehiya Raheem Safawi, the former Revolutionary Guard commander, who is currently the senior military advisor to the Ayatollah Khamenei, said in the ceremony that "Israel must take Hizbullah's leader, Hassan Nasrallah statements seriously."
Following the assassination of Mugniyah, Nasrallah warned of coming attacks on Israeli targets in Israel and around the world.
Safawi reiterated his hope for the "early fall of the Zionist regime," which he called – as Iranian President Mahmoud Ahmadinejad did before him – a "cancerous growth".
Safawi further called on all Arab nation to "join the fight" by boycotting all diplomatic and financial ties with Israel.
Meanwhile, Ahmadinejad met Sunday night with Secretary General of the Islamic Jihad Ramadan Abdullah Shallah,
The two reportedly discussed the situation in Gaza Strip, with Ahmadinejad telling Shallah that "resistance is the only way to defeat the Zionists and their patrons."
According to a Sunday night report by the Iranian news agency IRNA, a radical organization called the "Islamic Student Justice Seekers" has put a price on the heads of three of the most senior members of the Israeli security establishment, Ehud Barak, Meir Dagan and Amos Yadlin.