You must be having different slippers for different attires, but have you got the one and the only one ballerina slippers.  If not then just go, get it and wear it for the next party.  You will take everybody by storm; believe me. This is what happened with me. My friends often felt I was not trendy and my outfits especially my selection of slippers weren't good enough.  Then I got to know about the ballerina slippers; I wore it for my friend's birthday party and guess what happened.  Everybody's eyes were popping out; none had ever expected that Jennifer could surprise them with such trendy, fashionable, stylish, colorful slippers.   I stunned everybody that evening; all eyes were on me; I was the star of the night.