I don't see a problem with you keeping the nightlight or your room full of items with a "certain character" on them, if that is what you like. I used to have my computer room decorated with all thing Garfield, stuffed and otherwise. It was a fun place to be. The only reason I got rid of them is the place I live now does not have room for them.

Enjoy your pretty nightlight and collection. Some things are just fun.