When gathering ideas it is important to use your resources. Most importantly, requesting information from the guest of honor and if they are not sure ask questions. This can be done by asking them questions that will make their personality stand out. Certain cartoon characters, colors, animals, times in their life, culture, and entertainment are a start to what might personalize their party preparations. Birthday parties are most commonly designed around the guest of honor by their gender and age. If you or the guest of honor is having a hard time choosing a theme even after questioning personal interests, an easy trick to try is to run to the bakery. Many times they will have a cake book that shows cakes of different themes.
Party ideas might seem hard to come up with at first but referencing the occasion gives a planner a good start in the right direction. Examining the key purpose to the event and choosing a theme will help direct your imagination to what would interest you and entertain the guests. To best represent the desires of the guest of honor, inquire what theme they would like.