Custard Running Track

We've all read about the amazing properties of custard (and if we haven't, check out Custard Filled Speed Bumps, Custard Powered Hydraulic Elevators et al.)

Olympic running tracks are usually composed of tartan (not the Scottish type), but this material has some unwanted properties that could possibly be circumvented by replacing the surface with custard. Firstly, tartan is somewhat hard, thus ensuring injury if a runner falls. Secondly, it tends to wear out after a few years, with small particles breaking off (especially under the influence of running spikes). Thirdly, it's just not ... custard. Who wouldn't love to have a go running on a surface that appears to be liquid until the force of one's foot falling upon it turns it temporarily to a solid (or semi-solid, at least). Finally, tartan is produced using mercury as a catalyst; custard is not. Thus by installing custard-based running tracks, sporting groups can also support the environment.

Advantages of custard over tartan include simpler resurfacing of the track when needed (simply top up the reservoir with more custard), softer impacts for falling runners, increased palatability for hungry spectators, and reduced maintenance (cleaning rubbish and leaves from the surface is not required - they just sink to the bottom of the track).