Thank you cards for OR staff?

Hello dear medical professionals! I have a question from a patient's perspective that I would appreciate your feedback on.

Would it be appropriate or just seem odd if I wrote simple thank you cards with something like a $10 Starbucks card for the each person in the OR who operated on me? If they can't accept gifts because of a dumb policy, would there be any value in receiving a thank you card, in your opinion?

Thank you!