To get an incubator, go you your scroll, at the top theres "Generate Incubator", choose your settings, and I believe the CDN option for Uploading is probably the way to go.
Then put it in your siggy and those that are interested will click on it..
But the clicks from this site is probably not enough to give u enough views, its better if you also put your eggs on other click sites:
http://dragcave.wikia.com/wiki/Click_Sites