Spark plug link...
 

Some of the old engine manuals had color pictures-charts showing what used spark plugs look like when they are fouled up, when they are carbonized, when they are OK, etc...

Does nayone know of a link to spark plug pictres so that I can check out the ones that I just replaced from my daughter's 300TE?

Thank you....

you could look at any haynes owners workshop manual, if you have one-this usually has the pictures you are looking for, on spark plug pictures