The "Explorers on the Moon" 50th anniversary coin sets are now released. They were available for purchase from the Official Tintin store website when I checked this morning, but I can no longer see it there. Sold out, maybe? There are only 10,000 of them anyway.
I really wanted to get one, but at 65 Euros (+ 22 Euros Shipping charge, which I think is way too much) it was a little too pricey.
The set contains 1 and 2 Eurocent coins from all 12 Euro countries (they are regular coins, no Tintin pictures on them or anything) and one silver medallion with a picture of "Explorers on the Moon" on it.
Still, I was lucky enough to get one of the 75th anniversary 10 Euro Tintin coins when they came out, which I'd much more rather have than this new coinset.
Update: I just found an extremely cool flash thing which lets you take a look at this new coinset in detail. I'm already regretting why I didn't buy it when it was there!!