One of a kind

[Prosit]

Also in West Frisia (Friesland) the Moneyer Jan Knol used a turnip as his mintmark about early mid 1700's. That might be cheating a little as it isn't part of the main design.
I like turnips...just not often and not in massive doses 

Dale

[Bimat]

Latest Finnish €10 silver collector coin: Arvo Yippö



(Images from Finnish Mint's website)

Perhaps the only coin showing a stethoscope?

Aditya

[chrisild]

While I still do not like colored coins the idea behind "emphasizing" certain characters here is a nice one. "As a token of gratitude, the names of children inscribed on the coin spell the word "kiitos", "thank you" in Finnish." (Source)

Christian

[<k>]

So far I haven't been able to find another coin depicting a stethoscope. 

Here is a coin depicting sloths - the only such coin in the world so far?



Congo DR, 10 francs, 2010.

[<k>]

Congo DR, 25 centimes, 2002. 

The only coin to depict a mongoose?

[Bimat]

So far I haven't been able to find another coin depicting a stethoscope. 

Yessssssssssssssss!!!!!!!!!! Finally managed to find a coin which is (probably) one of a kind.

Aditya

[<k>]

Only bimetallic coin showing another bimetallic coin on it? (5 Rand 2009, Nelson Mandela)

Quite possibly, but I can go one better: the only bimetallic coin, represented in bimetal, on a coin (albeit a monometallic one):

[Figleaf]

Pakistan, 100 rupees, 1977. Birth Anniversary of Allama Iqbal.

Are there any other coins where the subject has his/her eyes closed?

Peter

[andyg]

Some San Marino designs - apologies if we had them before


Beetle

[andyg]

Deck chair

[andyg]

film

[andyg]

footprints

[andyg]

sand castle

[andyg]

splitting the atom

[paisepagal]

I'm pretty sure the easy chair is there too in one of the euro commems .. For a painter ... Have to check