I have not seen any mention of what was actually in the goody bags the Iranians gave out.
If they were of value then they should have been declared for customs duty and also handed over the the men from the Ministry. If they wanted to keep the contents they should then pay the fair market value.
Then if a particular memento was a desk ornament or similar it should be checked for explosive substances, drugs, or even bugs.
Any ideas chaps?
Little model of the Sharyad perhaps? Shake it and watch the snow fall.
http://report-en.aruna.ir/pic/azadi01.jpg