One of the best sources of coin information are the Mints themselves.
In most cases, their websites offer an abudance of information and high quality pictures of the coins they produce, along with artwork of past and future designs, or even sketches of experimental pieces.
Please keep this list complete and up-to-date, by submitting your own links.
Cyprus - 1 euro 2008 (The Idol of Pomos)
EUR 1.90
Finland - 1 cent 2007 (The heraldic lion of Finland)
EUR 0.15
Finland - 1 cent 2008 (The heraldic lion of Finland)
EUR 0.10
Luxembourg - 1 cent 2010 (The Grand Duke Henri)
EUR 0.15
Finland - 2 cents 2009 (The heraldic lion of Finland)
EUR 0.20