☣️バイオハザードBiohazard. Means biohazards, contamination and danger. Use it for hazard warnings and zombie-apocalypse jokes.
🎂バースデーケーキA decorated birthday cake with lit candles. Conveys birthdays, celebrations and making a wish.
🧡オレンジのハートAn orange heart. Conveys warmth, support and enthusiasm — also popular in autumn and Halloween contexts.
💓ドキドキするハートA beating heart with motion lines. Conveys a fast heartbeat — excitement, love, or "my heart is racing".
🧛吸血鬼A vampire. Means vampires, Halloween and dark charm. Use it for Halloween, vampire shows and "night person" jokes.