Creating a cheap backdrop for photography can be both fun and budget-friendly. First, consider using a plain wall or hanging a large bedsheet or fabric in the desired color. Second, try creating a DIY backdrop stand with PVC pipes or a clothes rack, making it easy to switch out materials. Third, using wrapping paper or patterned fabric can add a unique touch to your backdrop. Lastly, don't forget to play with natural light and shadows to enhance the overall look of your photos.