🎂생일 케이크A decorated birthday cake with lit candles. Conveys birthdays, celebrations and making a wish.
🎉파티A party popper bursting with confetti. Conveys celebration and congratulations — birthdays, wins and good news.
💐꽃다발A bouquet. Means flowers, romance and celebration. Use it for Valentine's, anniversaries and congratulations. Alternative: 💐 — same.