I just received a few comments on the other bird house I posted last night so here is my technique if you can call it that:
I used patterned papers for the roof, front, back and sides. First of all I painted the whole house with gesso then the bits that I wasn't going to paper I painted with acrylics on both the houses its the pink parts. I then covered the other bits with paper.
These houses are not functional as such, just pretty!!!:) I guess if I decorated them with something else then they could be used outside but I can't think of any bird that would fit in the wind chime house so that is just functional but the other one is the right size for a bird. Hope this makes sense and if anyone wants any other info let me know I am happy to explain.