Personalized Guestbook Platter Create a unique keepsake for your next special occasion. This oval platter is perfect for weddings anniversaries birthdays or any special celebration! Using the permanent black pen that is designed to write on porcelain finishes; guests can sign their names and thoughts to create a one of a kind gift. Platters are commercial grade white porcelain and include a black pen with detailed instructions. Platter is available in 13 3/4 and fits approximately 100 signatures.