This application allows you to quickly create Metro-ized icons from either a collection of over 1400 symbols, or even a symbol from a font installed on your machine.
For example, the lightning bolt can be used as a tile:
I haven't gotten that far into it yet, but another thing I find missing for the FireMonkey version that appears to be an oversight is the lack of a flow layout panel that flows from top to bottom, left to right. The default flow layout panel flows left to right or right to left. Unfortunately this makes laying out a metro style application a manual process, and doesn't easily allow for the addition of dynamic content which would flow appropriately based on screen dimensions.