how to transfer background from one image to another and highlight item in foreground

[dough79099492]

I have several photos that I want to have the exact same background, but different (but similar) items on the foreground for a wall piece.  So I took pictures of the items on the same background but had to tweak the colors and shading in lightroom to make the each picture look right, but now the backgroud (which is a marble colored floor tile) looks different in all of them.  How can I copy and paste one background I like to be the background for all of them? see examples

[c.pfaffenbichler]

Did you photograph the background without any object? 

Because you more or less need to isolate/clip all the objects (and the shadow they cast on the background) to be able to insert the same background behind them all. 

One alternative woudl be making a good mask for the background for each image and try to color correct all the backgrounds to more or less identical appearance. 

[dough79099492]

thanks for the tip to take a picture of just the background tile.  I never thought of such a simple idea