I've been trying to stay away from buying pre-printed background paper and trying to create my own backgrounds to highlight stickers. Using stamps to do this is allows you to use complimentary colors and is actually very easy. Here are two quick examples:
The first card took some practice. I started by making a mask using a Spellbinder die from a thin sheet of white paper. With the mask in place on a pre-cut panel of white paper, I colored the inside opening with gold ink (Tsukineko). Without removing the mask I stamped the text (Stampin Up!) in dark brown ink (Color Box/Clear Snap) over the gold background. I mounted the stamped panel on a piece of antique gold paper (The Paper Company) and mounted the two panels on a white card. The final item is the addition of my last 3D butterfly sticker (Mark Richard); which I've held onto for over ten years.
The second card was actually simpler to make. I wanted to create a "water" themed background for a 3D dragon fly glittered cardboard sticker (K&Company/EK Success) that I had left over. I started with a panel of white paper cut to the size I wanted and which I then edged with masking tape. Inside the taped area I stamped the park scene (Inkadinkado/EK Success) image in black archival ink (Ranger) and then using cotton swaps and various ink pads I colored the stamped image, making sure I extended the color over the tape. Once I removed the tape I had a perfect background. I mounted the stamped panel on a piece of patterned paper; which was actually part of the packaging for one of the many K&Company/EK Success sticker packages I've collected. Mounted the two on a light grey card and then added the dragon fly.