Hi,Do you have a photo shop program? Hugs ♥
I use Corel paintshop pro x4 Ultimate. It can be used to remove backgrounds or remove objects to put on diff backgrounds. I don't know of any free programs that have this feature. Cost wise a good program and easy yo use.
I use PSPX4 too and I love that program, but it's not cheap. You can use Gimp to do it also, and that's a free download. Here's a link: www.gimp.org