If I want to make a little icon, what's the best way to do it?  Can it be 
done with the internal painting tool?

I have a hazy recollection of seeing a recommendation to use an external 
paint program and then importing the result (into one of the image or 
button morphs?).

While poking around I found the forms dictionary in Scripting System.  Can 
anyone tell me if the code that populates it is in the system, or are we 
left only with the artifact?  (I found some code for a few items, but not 
most).

Any recommended sources of icons on the net?

Thanks.