I use fold out cardboard poster board and black or blue poster board. I also have some dios built onto shelves which have posterboard backing. I crop the pictures and try my best to keep any crap in the back ground out! Does not always work but Im having fun so... I have not gotten too good at green screening yet. All of my work is done using my I phone...Its shot using the Camera + app and edited using the POW Comics app. Just do the best you can and I hope it turns out good.