And.....I have been part of FE groups many times. And I have to say that it really isn't 'all that and a bag of chips', so to speak. I usually end up carting all that stuff home, and then tossing it out. Yes, some people are very creative and the items they give out are terrific. BUT...the vast majority of guests just head to Oriental Trading and get a lot of cheap stuff, in bulk, and then put it all in baggies and hand it out. I usually only keep the personalized things..notepads, pencils, etc.
When you're staying at a resort, there isn't the same 'feeling'..you really aren't part of a group per se, unlike a cruise. You are all meeting up at various times onboard. This seldom happens in the parks...believe me, been there, done that (or not done that as the case may be).
And as already noted, Disney frowns upon outside decorating of doors and windows. They aren't even happy about people putting stuff up on the windows on the inside. I doubt they would be happy about FE type stuff..not to mention that there is no way to attach one to a resort door!!!