DX has 3 versions of adapters extensions: a 100 cm Y adapter, a 100 cm extension and a 25cm Y adapter which are cheap.

The short one is pretty flimsy (thinner/less poly covering) but at ~10" it would be the right size. Unless it really, really offends your sense of aesthetics just bind up the extra connector. That way, if you develop a short in one, the other is right there and waiting. The longer ones are stronger and decent for chopping up to make connectors and adapters.