Ideas for throwing a 70th birthday party include having a decade-themed party, celebrating the decade the guest of honor was born in and having a party with the number 70 as the central theme. Another idea is to throw a "This is Your Life" party that celebrates the person's achievements and milestones. Determine what the birthday honoree would appreciate the most, or would like the least, before choosing a theme.Know More
To throw a decade-themed birthday party for a 70-year-old, determine the year the guest of honor was born in. For example, if the person turned 70 in 2014, he or she was born in 1944, so you can have a 1940s-style celebration. You can decorate with a patriotic theme, since much of the decade was focused on World War II. Encourage guests to come dressed in 1940s fashion if possible, and find a band that can play big band-style music from that era. For a party with a number 70 theme, invite 70 guests for a large celebration. Create centerpieces for each table with a picture of the person during special moments. For instance, one table might have various pictures of the birthday honoree laughing under a title that reads, "70 years of laughter," while another table might have pictures of friends over the years with a title that reads "70 years of friendship." You could also release 70 balloons at the end of the party. To have a "This Is Your Life," party, set up the party like the popular television program of the same name. Have the birthday honoree sit at a table of honor, elevated above the crowd. Throughout the night, the emcee or host of the party should surprise the birthday honoree with special guests from various stages in his life. These people should be surprise guests that the birthday honoree may not have seen in a long time. Have the guests tell stories about the birthday honoree for a memorable party.