José León has a demo project up where he demonstrates how to build an animated drop down menu in Delphi XE5 Firemonkey. What is interesting about this demo is that he uses very basic components but brings them all together to create a slick looking menu. The menu itself is built out of a TRectangle and he uses a TShadowEffect on it and a TFloatAnimation to smoothly slide it in and out. Each menu item is built with a TImage, a TLabel, and finally a TFillRGBEffect. This drop down menu would be a good candidate to use TImageCacheLayout with as it would take the nice looking menu and cache it. It looks like the demo was built for IOS but you should be able to use it on Android without any problems as well. Additionally there is a video which is about 16 minutes long where José demonstrates how to build the app. I first saw the post about this demo here.
Head over and download the source code for the drop down menu demo and watch the video tutorial.