The Sacagawea “Cheerios” Dollar From 2000
These dollars were added to boxes of General Mills cereal as a contest in the 90s. However, the design had not been ready in time for the date they announced.
So, the U.S. Mint helped provide a version of an existing design that was a little different. Only four of these coins have been discovered. If you ever come across another one, hold on tight! It’s worth $2,677!