A cute UISwitch prototype built in about 8 hours. One of my co-worker gave me this concept last year. It was written in Objective-C and now translated into Swift.
DO NOT USE IT, it's not production ready because I used a lot of magic numbers generated with PaintCode. All assets of PaintCode are in the Design folder.
LTJelloSwitch is available under the MIT license. See the LICENSE file for more info.