Customized the back by sticking some of those piston thingies that you find attached to the boot of a car. Also added some piping that you can find in a place that does fish aquarium stuff.
To finish off, I added "engage" and "caution" stickers too ^^;
Saw many folks on roller blades in Paris when I was there on a business trip a few years ago. Would like a decent looking pair where the wheels can come off.