You were expecting diamonds and got socks or some terrible appliance.
Oh dear God.
Have some pity on the gift giver. They probably stressed out about your gift. They will be embarrassed when they open up the gift you got for them, which is ten times better. Just be gracious. Some people are better gift givers than others.
Take a deep breath. Smile. Say thank you.
Say, “how thoughtful!”
Then start planning on better hinting strategies for next year.