I have this amazingly vivid internal life and I am continually thinking about ideas. :) Unfortunately, I am so busy thinking, I fall flat when it comes to actually "doing." Such a waste of great ideas.
Heres an idea: have people write their favorite song lyric in a guest book with name of song and artist if known and then sign their name. Always has been my fave Elton John song! ( Ellie Goulding song too)