|Country||Issue date||Scott #||Subject||Denom.|
|Slovakia||March||4||2011||612||Easter - Meringue Lamb||40c|
A quick check of the postal websites for these countries reveals that the Slovakian stamp is available for purchase (and I've just ordered a few singles and a first day cover of it).
Update: Okay, there is a way to order from the Spanish post website. You will need a login on their site, and I don't remember enough Spanish from when I studied the language in the 1980s to create an account of my own.