Our boy and girl twins are approaching their seventh birthday, and for every year thusfar my wife and I have been able to do a combined birthday party with our kids' blessings. You might ask why we bother and don't just do two separate parties. Two reasons: less difficult and cheaper. There are very few economic benefits to having twins, but only one birthday party has saved us money, as well as time. I know of parents with different aged children who combine parties, and those that wish they could! But how do you do it when your twins are either of different genders and/or have very different interests?
Since my son and daughter have dissimilar interests, we had to really research to find an idea that they both would be excited about. My son is very sports oriented, but my daughter has very little interest in them, but instead enjoys the arts, especially dance and music. It turns out that there are a variety of possibilities in a variety of price ranges and I shall attempt to illuminate several of these.
You can always have the party in your own home if this is what you and the children desire and you have the space. But you might want to avoid themes, because it could be hard to combine a “Princess” theme with a “Superheroes” theme. Some themes that can work are ones based on movies or tv shows that both your twins enjoy and are into. For example, Toy Story allows for many possibilities, or Diego and Dora (two shows that are closely connected).
When your twins are younger you can always do a party with a variety of activities or games.
If both your twins are really into a sport such as soccer, you could have a party that includes playing a game of it. I have also seen entertainers such as birthday clowns or children’s singers or even a costumed character coming to the home to do a performance for the children. There are also local companies that may bring exotic small animals into your home for the kids to see and even touch! Once again though, you would probably require some consensus from the twins for any of these ideas.
The other limiting dimension to most at home parties is that the majority of homes cannot accommodate a large number of guests so that your children may each be limited in the number of invites they each get. One other in-home idea that has proven successful is showing a DVD or a Blue Ray movie provided that you have a large screen television and enough viewing space for the number of guests that you want.