That's a marvelous idea.
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...