What's the ugliest gift you pretended to like in order to not hurt the giver's feelings?

We all have a thing or two that we had to pretend to like in order to not hurt the feelings of the giver (things made by children under the age of 12 don’t count.) Inspired by this question.

Mine is a painted African tribal mask purchased in Hot Springs AR, about 10 years ago He was so proud of having picked it out and mailed to me. It’s hanging in my living room, neither an objet d art, nor a cultural artifact.