This turned out to be a spinoff of another project I was working on, so I figured I would share it. I'm working out another version so I can keep using a variation of the signature I have now.
Enjoy and use.
I'll be adding other signatures over the next few days, so keep your eyes peeled.
Edit: that 25 kb limitation is killing me. This is a temporary one until I get a better image closer to 25 kb. This one is about 15 kb and looks it.
Edit 2: Still at about 15 kb, but looks 100% better.