How about the 'King of Siam' 1836 Proof Set, complete with 1804 dated Dollar - one of the world's premier numismatic rarities:

Pattern coins are an interesting area of study with many beautiful design proposals and variants.

This is a complete set of 1868 standard designs, proof minted on aluminum planchets:

Proposed Two Cent coin:

The design as adopted was the first to use the motto, "In God We Trust".