If one of your resolutions (and, quite frankly, whose isn’t?) is to get fit in the new year, then one of the most obscure, bonkers and yet brilliant ideas we’ve seen is the Roller Buggy. Invented by an Austrian designer, and produced by Pix Studio, the baby buggy boasts a retractable scooter platform meaning that when the busy pavements clear before you, you can pull out the platform and speed off. With chunky wheels and all the safety equipment needed to keep your baby tucked safely into its seat, it’s perfect to increase your heart rate when you’re out in the park. No more risky than the three-wheelers you see being pushed around by joggers, it means that having a baby is no longer an excuse to pile on a few extra pounds. (We’re just hoping that the lady in the picture didn’t hit a high kerb when speeding through Manhattan as she appears to have mis-laid her child. An unfortunate publicity shot, certainly).