I think i just might have hit the jackpot for you. I found stuff on a carousel themed bredroom. Maybe you could get some ideas from it.
Check out this site:http://mariesmanor.fateback.com/GIRLS/Carousel_Bedroom.html
Was the link to the coloring book on this website the same as the one you found?
Check out the room picture that is between the two lamp pictures. I like the round carousel rug on the floor. The pattern would work great on a table. I tried to find a better picture of the rug but I couldn't.