for indoor photography - first - you will want to set the camera to what-ever type of light, that is lighting the scene ....
such as - sunlight, incandescent, fluorescent ....
be aware that not setting the camera to the type of light - incandescent light is yellowish orange ...and fluorescent is bluish green
next - backgrounds can be almost anything .... sheets, wide roll paper, color foam board ... foam board in various colors are available at most office supply stores ... roll paper in many teacher supply stores
wide roll paper & sheets provides a "vanishing background" ...and objects appear to "float"
I have a indoor photo table that i have 2 rolls of wide roll paper - one white the other blue ....on some projects I use foam boards: white, black and gray as a background / and sometimes a "surface" ...and sometimes a "reflector"
