Thanks. I started off with a picture of a tarantula from MorgueFile. I used
http://www.picnik.com/ to edit the photo in my browser. I mainly just used a lot of filters and color distortion effects, just very basic types of click and drag image editing tools. It's kind of a cookie cutter mock graphic design program as far as not having more advanced tools, but very easy to use. For someone used to using Paintbrush or similar, it can be a fun tool. It can be a somewhat efficient cropping tool, too, because basic cropping can be done in browser. Probably not the only or best site like that, but they have a Google Chrome extension so I have been known to use it.