I think the coin should look more digital and bold to greater emphasis the name particle.

Take this for example; http://vimeo.com/44083487

Using that sort of effect for the outside of the coin, someone with good photoshop skills could create a coin using particle-style effects that would look amazing.

The "P" Would also have this particle effect, perhaps in a different colour to stand out. If you can picture that, then that's how the coin would look awesome.