Can anybody think of a plug - in idea for programs like windowblinds, object bar or DX?

I only have a few myself but i think they are cool:

Windowblinds news scroll:
Scroll news from your favorite news site, or blog site

Windowblinds analog clock

Windowblinds theme switcher
Swich from one sub theme to another with a click of a button

Windowblinds mail checker (now with sounds! )
Tells you when you have mail


Object Bar analog clock
Done! somebody got that one already


Object Bar news scroller
I like news...

Obeject Bar calander


DX... can't think of anything really... _Martin_ and others have done a good job keeping me happy



So what would you guys want as a plug-in?

Now that I think about it... how do you make a plug-in anyway?