Just wanted to pass along that skinit has some great League of Legends skins for smartphones as well as for other devices such as desktop PCs, laptops and tablets. The champs they have include Jax, Miss Fortune, Teemo, Ashe, Morgana, Graves, Vi and Riven. You can view the artwork here.
I am waiting for my Ashe skin to arrive for my HTC 8X smartphone. Totally psyched! Have never purchased one of their device skins before so I can’t attest to their quality yet, but they have custom skins for specific device models so that they fit (in theory) the device perfectly. Will update later once the Ashe skin arrives to let you know how I like it and to share photos.