The most common of all German 5 euro cent coins is the 2002-F from the Stuttgart mint. Of that is the one I recently found in my change and probably the one you may find too.
Here's the stats...
Type/Country: 5 Euro Cent / Germany
Metal: Copper-Plated Steel
Value: $0.10 in Very-Fine
Do you have a Euro
coin and want to know its value? Leave a comment/question and I will
do my best to find out the price and history for you.