Hatchables
Hatchables are the snazzy little eggs that "hatch" into some picture at the end of the month.
1. To make a hatchable, open any art program and draw an egg, as colorful or decorative as you like. It doesn't have to be any particular size, but if it's too much over 100 x 100 pixels, people might not be as apt to use it. Visitors tend to like small graphics over big graphics.

2. Save it as hatchable.gif or something you'll remember easily (if you're using Paint, save it as a .png, not a .gif).
3. Upload it to your website (must be a domain). Tinypic and imageshack won't work because the key to hatchables is overwriting the old image file with a new one (the hatched thing).
The code you give for people to use might look like this: (of course, you have to change blahblahimagehost)
4. Now you can put it up on your website, give people the code, and whatnot. The next part is the secret. *gasp* =O
Go back to your image program, open the hatchable file, erase the other stuff, and just draw whatever you want the egg to hatch into. Save it as hatchable.gif again (you have to overwrite it) and don't upload it to your website. You upload it to your website at the end of the month, and when you do, you have to overwrite the file.
If you've done everything correctly, the egg should change into your second image (after refreshing the page), thus "hatching"! If it doesn't work, you need to make sure you overwrote the file and didn't just upload a new one to your site.
starts out:

is changed to:


