I did the same, but my idea didn't really work. Too bulky and sensitive to the shipping delays.
[1]: http://oami.europa.eu/CTMOnline/RequestManager/en_Result?tra...
If they are the same as those I once ate in Barcelona—really tiny, perfect details, like small artworks and excellent shape and colors—you should go for this.
Question is: how long is the durability. Probably you have to find expensive delivery services for food with a cold chain distribution.
But the idea is good, I never saw such pastries somewhere else again. Are they the same in Portugal?
EDIT: I found a link (think it was Bubo): http://www.cocoonbarcelona.com/blog/favourite-pastries-barce...
But yes, it'd be hard to keep them fresh while not inflating the costs too much (I don't expect them to be sold as expensive delicatessen).
And these income reports are clever Marketing.