How Do You Get Characters Costumes On Poptropica How Do You Get Off The Tinkerbell Costume In Poptropica?

How do you get off the Tinkerbell Costume in Poptropica? - how do you get characters costumes on poptropica

I have tried everything. Every time I click my mouse over the role of the dress my character in place of Pixie Hollow, do not let me. Do you have any idea what happened?