Pool Party Taliyah/Braum/Illaoi?
I can't draw digitally to save my life, but what I imagine is something along these lines:
Left side of splash: Taliyah using her awesome surfing skills to dash around the pool on a body board. (Lulu can be leaping out of the way or look surprised. Gotta tie in the other skins yo.) But she's looking over her shoulder with a confused look.
Middle of the splash: 
leaping towards Taliyah with a lifesaver in-hand and a smile like it's the first piece of action in an almost boring day.
Right side of splash: 
sitting high atop a lifeguard chair pointing or blowing a whistle. Hanging on his chair can be a large rescue board. 
has the rescue tube, so it'd make sense to give Braum the large board.
Of course now comes the types of outfits. I don't see Taliyah or Illaoi wearing something skimpy. I can see them wearing something feminine yet strong. Like this:
Illaoi can be in this:
While Taliyah can be in this:
http://thumbs.dreamstime.com/z/boy-girl-teenager-lifeguards-uniform-20445459.jpg
Or vice versa. Though Taliyah would probably wear one of those skirts similar to how 
wears hers. Meanwhile Illaoi can wear the top and shorts. Of course Braum would show off his chest the way Graves does in his skin. But I can see Braum in blue shorts. Sprinkle some of the other skins just to flesh it out or leave it as is. This is just my idea but I'm sure a lot of people would like to see a Pool Party Taliyah/Illaoi skin.