Easily...yes, if you call beating your brains out for half a week easily!
Sera, buy yourself a small Wacom pen and tablet (I think they are about $70 now). I use mine instead of a mouse, it's more of a natural feel, like writing. The Wacom pen needs no battery and you don't have to really even touch the tablet surface to use it as a mouse. I drew my signature with the pen in my photo software and then inverted the image to get the white on black background. I don't know how to do the copyright either but I imagine it's some kind of control character trick.
Especially liked G'Mom's Cactus! I grew up in Arizona so maybe I'm prejudiced 8^)