As per usual, I hope the winner enjoys it when they get to it.
A "Thank you" if you win is always appreciated, but not required. I never mind hearing "thank you" on my giveaways. (I hate to say it, but if the winner has a history of never saying "thanks" on their wins, he/she might get blacklisted.)

🇺🇸 🎆Happy 4th of July!🎆 🇺🇸