Here are few themed birthday party crafts to keep kids busy during the parties. For specific theme party crafts, go to birthday party theme page. Generally, for the craft to go smoothly, have all the prep work done in advance. Divide the pieces that will be used into portions and it also helps to have samples available for kids to see and to look at. For younger kids, keep crafts simple and it should not last longer than 15 minutes. For the older ones, you can make them a bit more complicated but generally still simple since kids are usually easily distracted by all the festivities and won't have much attention span or patience to sit through a complicated craft (15-20 minutes).