All these years of pilgrim hats in school plays, and I never wondered about those buckles until now!
Since Google is so close by, I just checked, and those buckles are a big, fat myth!
MYTH: The pilgrims wore only black and white clothing. They had buckles on their hats, garments, and shoes.
FACT: Buckles did not come into fashion until later in the seventeenth century and black and white were commonly worn only on Sunday and formal occasions. Women typically dressed in red, earthy green, brown, blue, violet, and gray, while men wore clothing in white, beige, black, earthy green, and brown.
Also, the Pilgrims ate with their fingers. They didn't have fancy stuff like forks.Here's the source.