Remember the Times

• Throw a party with the theme "35 Years Ago" by using the events of that year or decade. For example, if you were born in the 1970s, plan a theme party around what was popular when you were born. For example, make a play list of songs based off the Top 40 hits of that day, and make fake newspapers with news about what happened in history the day you were born and put them up as posters or send them out as invitations. Ask guests to dress up in vintage clothes for the occasion.
  
  

A Night of 35 Cakes

• Invite 35 guests, have each one bring a miniature cake, and make it a birthday of 35 birthday cakes. Add 35 balloons and enough beverages for the party-goers, and it turns into a large dessert party, complete with a long-lasting sugar high. For larger events, invite guests and serve 35 different desserts and liquor choices. Also, encourage guests to bring gifts that involve giving 35 of something, for example, 35 cookies, 35 flowers or 35 mini candy bars.
  
  

Presidential Birthday Party

• One thing that every 35-year-old natural-born U.S. citizen can do is run for president. Celebrate by throwing a presidential birthday party and make campaign posters featuring the birthday guest of honor. Decorate with red, white and blue, encourage the guests to dress up as former presidents, and serve a buffet of favorite foods of past presidents, such as chicken enchiladas, a favorite of President Clinton. Give the party guests faux campaign buttons or T-shirts as a party favor.
  
  

Attend a Sporting Event

• Make sports the theme of a 35th birthday party. Go to a baseball, basketball, hockey, soccer or football game with friends or family. Buy the birthday guest of honor a jersey of the sports team with the number "35" and with the gift recipient's name on the back. Tailgating before the game (where allowed) can provide a jubilant environment to celebrate with food or cake and ice cream. This option also allows for a large number of people to attend the outing.