Ah the classic, the ScrobblerSig. Simple, sleek, and completly customisable.

The "Standard"

Using the ScrobblerSig is very simple. For example:

http://www.denness.net/scrobblersig/u/lozzd.png

where "lozzd" is your Last.fm username... produces the image at the top of this page.

Customisation

Variables are added like below:

http://www.denness.net/scrobblersig/u/lozzd/labelcolor/FFFFFF/trackcolor/FFFFFF/backgroundcolor/000000/backgroundtransparent/sig.png

which produces the following image: