Dora and Diego would be adorable. Otherwise go with one theme they both enjoy, my twin girls love trains so we did a train theme even though that is generally considered a "boy" theme. Maybe jungle animals or something that could be neutral but get them different party hats. www.orientaltrading.com is a great place to buy party stuff including gift bag goodies in bulk for a cheap price.
at 9:52 AM on Aug. 23, 2010