As a symbol of honor and recognition, pennants are used to convey special recognition and gratitude to recipients. A thank-you letter is a written expression of heartfelt thanks to the recipient or group for their help, support or contribution, so as to further strengthen communication and contact. Through the combination of pennants and thank-you letters, we can show the attention and sincere wishes to the donee more comprehensively and increase the meaning and value of the gift itself.