More than 1,000 people have reacted to the "Make America Great Again" cap with 91% giving it just one star.
Most have left a politically-charged comment about the decoration and Mr Trump's surprise win in the US election.
We've had a look at some of the most creative criticism of the item, currently out of stock.
"It called Mary a nasty woman, told Joseph to go back where he came from, built a wall around the manger, and then when you press it sings I'm Dreaming Of A Totally White Christmas," writes one user.
