There may be tens of thousands of fonts out there, but that doesn't mean you can't create your own custom type solution for a unique logo...
The advent of DTP and easy-to-use applications such as Fontographer has seen a massive explosion in the number of typefaces available to designers. But the sheer quantity of fonts does not guarantee that you'll find the perfect match for the logo you're designing. Why not open Adobe Illustrator and have a stab at creating your own font instead?
The advantages are obvious: there's no need to use a potentially unfamiliar font-creation application such as Fontographer or FontLab, because your designs will remain as vectors and not become a fully-fledged typeface. Secondly, you only need to design a handful of characters: the ones appearing in the logo itself. That makes it a great introduction to the world of typography and you can always extrapolate your creation into a full font at a later date, should you choose to.
Best of all, you'll be creating something completely unique, and, in a world where distinctive corporate identities carry a lot of weight, that's sure to impress your client. The first thing you need to do is sit down with a blank sheet of paper and a pen...