Got a better one instead of the first Spongebob:
-Spongebob Squarepants of Bikini Bottom
Well, as we've seen from the movie, he's small enough to be an artifact...

Some more from me:
The Well-Weathered Pirate's Flag of Ned Lowe
The Metal Body Armor of Ned Kelly
The Soap Cake of Jefferson "Soapy" Smith
The Torn Journal Page of Richard Byrd
The Jeweled Crown of Esther
The Bullet-Grazed Burnoose of Abd al-Qadir
The Dragon-Headed Scepter of Olaf the Red
The Cracked Shield of Scipio Africanus
Qin Shih Huang Ti & the Elixir of Life