What are some ways I can ask her?

So my school is having a winter formal and I want to ask my best friend if she will go with me. However I dont want it to be over text or something dumb like that I want to ask her in a more special way but I cant think of any ways right now. I feel good about her saying yes but I still want it to be special

have a treasure hunt and turn up behind her at the end then ask and take her someplace romantic...