Are you looking for something to wear poolside, not necessarily for swimming? This Swim Pretied was made exactly for this reason. It won't stay on well for swimming (unless you wear a velvet headband underneath), but it's a great option if you'll just be in the pool hanging out.
Each one has a colored strip going through the front which adds a pop-of-color. The fabric is moisture-wicking which made it great for working out in and being around water.