Are gingerbread houses edible?

Hello Friends! My next planned activity is coming up quick! On Saturday, December 11th, I will be at the Ellen Heins Smith Girls Home once again, this time, making Gingerbread houses! I have bought three separate gingerbread houses for the girls. I am trying to decide whether to divide the girls into three groups, or divide the girls in two groups and then have a staff team. I think it would be neat to include the staff in an activity. Anywho, I will also be going to the girls home on Thursday for my usual every other Thursday visit. This week, I think I might bring a small treat, like gingerbread cookies, to get the girls excited for Saturday! I am a bit nervous about Saturday, but hopefully the nervous will go away! I will be sure to update you on how Thursday, and Saturday goes later on in the week. However, here is the thought of the day: Are gingerbread houses edible? (: