I don't know if you've seen these before, but I think it would be neat to add them in just incase some forum type won't permit the current form of the IMG code.
That's my DC Incubator, Usually used when adding individual eggs/adoptables is not forseeable.
I was thinking about having a script, but we provide our own images and fonts to make it work.
Either that or I'll have to think of something else to make siggys work in the forum I'm setting up.