Swimsuits - where to find a cute one?

I have to find a swimsuit by mid May to take G-daughter to WaTiki Water Park for her birthday - we do it every year. All the site's I've found that show post mastectomy suits have ones that I'm not about to wear - too OLD/matonly looking. I'm OLD yes - but I don't dress my age. So any ideas for younger looking swim suits. I'm thinking that I might have to make my own (have done in my youth when I'd get an idea and couldn't find anything close) or get a 'suitable'/do-able 'regular' suit and add a pocket.

Ideas please!