Years ago I worked in an advertising agency that made flyers for newspapers, they wanted photographs without distractions in the background for the four-colour printing process. Photographs without a seam between what you are photographing is siting on, and the wall behind it as in this photograph.
Step 1: Seamless Backdrop Design
This is called a seamless backdrop, where the wall behind what you are photographing blends in with what you are photographing is siting on. Seamless backdrops are easy to make and I will show you how to make one out of simple materials.
Flexible card sheet
2-inch Gorilla tape
Step 2: The Cardboard
Start with a cardboard box.
Step 3: Cut the Cardboard
Cut the box along opposing corners.
Step 4: Card Sheet
Choose flexible card sheet the colour you want for a backdrop.
Step 5: Length of Card Sheet
Make sure the card sheet is no more than 7/8th the length of the cardboard.
Step 6: Taping the Two Pices Together
Tape one end of the card sheet backing to the cardboard with 2-inch Gorilla tape and fold tape over as in this photo.
Step 7: Tape the Other End
Then tape the other end of the card sheet as in this photo.
Step 8: Finished
When the seamless backdrop is propped up the back is flat, the bottom is flat, and the corner is rounded.
Step 9: Start Photographing
Now you are ready to start making seamless photographs. Take your pictures.
Step 10: Cropping
And crop the photos so they contain only what you want in the photograph. In this photograph I wanted to demonstrate the article was palm size, seamless photographs can loose size perspective.