Query: Lewis & Clark brought back several gifts from Indian tribes. Some of these gifts entered Thomas Jefferson's collection at Monticello, and TJ describes these gifts in his own writings as diplomatic gifts. Of course, TJ received/accepted them while he was President.
TJ also received a diplomatic (through the American consul in Russia: Levett Harris) from Emperor (Tsar) Alexander I. It was a bust of Alexander I. TJ also received and accepted this gift while President.