I don't know about having multiple crown cups for your cupcakes. As far as I remember, the birthday boy and ONLY the birthday boy gets the crown!
Let's play sleuths: What's the connection here? Sure sure, you may say it's someone's 20th birthday and they love owls but that's too easy. There must be a deeper meaning. Is there a secret society of owls? Is there a code to which side they wear their flowers on? Is 20 a mystical number?