Loxahatchee, Florida resident Sylvia Thomas found the first yellow sneaker in her mailbox Sunday.
A day later, the matching sneaker was discovered on top of her son's mailbox a few doors down.
Both had 'KKK' cut into them.
"I was shocked and hurt" said the longtime resident.
The Palm Beach Sheriff's Office removed the sneakers in an evidence bag.
They're investigating the incident as a hate crime.
Sylvia believes it is a reaction to the election of Barack Obama, but she forgives.