Don't forget that this is her project. She may have grand ideas but if you or your husband are doing a lot of the work, then it's not her project. She may need your help to realize what she can accomplish is not quite up to what she can imagine.

Btw, as she gets older and the projects get more elaborate, she will be able to do more on her own. There is no time like the present to get her to understand she should be doing most, if not all, the work on her projects.