I sometimes take pictures of my dolls in my bathtub!
- The background is perfectly white with no wrinkles (which usually happens when I drape fabric in the background.)
- No "seams lines" between the floor and the wall, either.
Using a floor lamp, I direct light on the opposite side of the tub for reflectance.
I set a desk lamp on the sink and direct light to the doll.
Silly as it may sound, it works great. I have to admit it's a bit of a challenge to get the camera in position, though.... but I'm creative so I deal with it.
Rub a Dub Dub!