Ivar added that a clam stamp would bring in funds for a "guided mussel" program. His friend, writer and publicist Jim Faber, printed a few thousand official looking clam stamps, sending sheets of them along with a bag of clams air express to Magnuson's office. Like the 1947 UPI news photo of Ivar scooping syrup, the 1960 photograph of "Maggie" and "Scoop" entertaining Senator Smith with Ivar's gifts is so perfect that it looks like it was directed by a commercial set-up artist. The story also got a lot of play in the press far beyond Puget Sound. Senator Smith modified her proposal to a series of stamps honoring the entire U.S. fishing industry with the first issue featuring the Maine sardine.
The Clam Stamp prank got second life when Ivar was almost busted by the U.S. Postal authorities when he began selling the stamps in his gift shop. Ivar proposed to the Feds a ritual scuttling of the stamps in Elliott Bay to a brass band accompaniment of "Asleep in the Deep." They were not amused. They confiscated the stamps and the printing plates for destruction in a special U.S. Postal furnace. Ivar was forever after amused that the Post Office would have its own basement incinerator for cremating bad stamps.