This question is for christians?

hiya folks, me and my husband are christians and we live in japan, my husband wants to start his own business selling christian merchandise, because being in japan, "a buddhist shinto" country we find it VERY difficult to find christian stuff here, like books, or ornaments, or just lovely wee godly gifts etc,and there are a lot of missionaries here who might want to buy things? what i want to ask yous all is, what kind of mechandise is most wanted by christians? what would you like to buy? is there anything that is on demand from christians, like even decorative things to hang on the walls, like prayer wall hangings? etc??? please someone let me know what you think would be on demand, cos even though many folk in japan arent christian they still seem interested in these things, and we only know of one little store here and its too far to travel to, but folk seem to buy these things, so,,,,,,,any ideas and advice would be nice. thanks