Wouldnt medals be Exumia? I always consider "coin" to be "money", or the exception of proofs which are versions of the "money" coins for presentation and still hold the same monetary value. I wouldnt for example consider an Olympic medal a coin.
i don't know about my favorite, but i and this coin (coins) are going to be spending some time together more than others. 2 fused 11th century sung dynasty coins stuck together with sediment. i'm soaking in distilled water and i'm going to try and get them apart.