For my tom-boy daughter's seventh birthday we did the Olympics.  I used Printmaster on my computer to make iron-on transfers of the flags and country names for several of the major world countries (U.S., England, France, Australia, etc.)and ironed them onto white t-shirts in the appropriate size for each child attending the party. (My daughter wore the flag of the United States, of course!) I also printed the invitations using Printmaster, with the Olympic rings printed on the front and letting the kids know they would be competing in several Olympic "events." I designed the cake to look like the five Olympic rings with toothpick flags sticking out all over it.  The decorations consisted of crepe paper streamers, balloons, plastic plates, napkins and utensils in the colors of the five rings - red, blue, green, yellow and black, as well as several paper flags which I printed and cut out and put everywhere!  As each child arrived, I would take a picture of them with my daughter in their new shirts, with a background of Olympic-colored balloons. (Some kids wore the shirts over their other clothes, other kids changed from what they were wearing to the shirt I had made.  In any case, all the kids were requested to wear the shirts and no one didn't want to wear one! For games, the kids participated in different events (outdoors) such as the egg-and-spoon race, a basketball dunking contest, hoola-hoop contest, somersault race, etc.  We acknowledged the first, second and third place finishers in each event, but did not give out prizes until the end of the entire competition.  At that time, we lined up all the kids as you would see them at the Olympics podium and handed each one a red, white and blue medal.  They bowed down as the medals were put around their necks, then we shook each child's hand (very formal). Then each child received an age- and gender-appropriate toy prize that I had selected for them previously.  We eliminated hurt feelings by giving everyone a prize. If you wanted to, you could also allow the kids to choose a prize from a large basket.  At any rate, the kids enjoyed wearing their t-shirts and medals for the rest of the day and then were allowed to take them home.  We sent them home with thank-you notes that looked similar to the invitation with the five rings on the front. This was a party that my daughter (who is now 13) thoroughly enjoyed and has never forgotten!