Ran across an interesting article that gives a helpful tips how to help children to get used to a "worship behavior" :)
The only thing I can add is kids WILL test your boundaries - they WILL do thing that you forbade them to do. Just - be prepared! As adults you might wanna discuss beforehand HOW are you going to react if this or that happens. Also, it is very helpful for you as a family when mom and dad present a "united front". Then kids will be less tempted to manipulate one of the parents into his/her "great ideas".