This one takes exactly two minutes, give or take! All you need is a poster board or two and a Sharpie.
Google a couple of simple line designs. Ones like this one that I made are trending right now, so you can find them on lots of blogs, framing pictures and even on ads. Find one that can act as a frame or boarder. Simple is good. You don't want to distract from your model.
For an oval shaped frame, I used a large serving platter as a template. I traced around the platter and use the lines as my guide for drawing the vine frame.
Place your back ground in some natural lighting and start snapping away.
The picture above was taken near a window, my daughter sitting in a chair, and the poster board propped behind her.
With my youngest daughter, I simply used a black poster board as a back ground and tweaked the exposure a little to make the colors pop.We set it up on the porch where the wooden floor boards looked decent, and the lighting was perfect.
In the past, I have used sheets, various different pieces of fabric, packing supplies.
What types of materials have you used for a backdrop?