A cupcake birthday invitation card consists of the details of the invitees, the reason to attend the event, the birthday venue, and the details of the RSVP. As shown in the image below, a cupcake's birthday party invitation card consists of some amazing cool background images showing the theme of the party. A birthday party invitation card diagram has a list of the prospective guests who the host wishes to invite. Other than that, in several cases, a cupcake's birthday invitation card should include the party theme, who all are hosting, time and date, location of the birthday party, food and beverages that will be served, and RSVP instructions. Online tools like EdrawMax Online let you create wonderful birthday party guest list diagrams as it provides several icons, background images, text fonts, and table options.