If you find that you have a number of things in the same color family, try putting them together in a vignette. Every single thing in the display doesn't have to be in that color family. There just needs to be enough of that color (usually paired with a neutral) to have an impact.
Amazingly, you can use shades of the same color that don't necessarily look great together, as long as you have many variations of that color.
Here are a few color display groupings for inspiration -
|Source - My Desert Cottage|
|Source - This isn't actually a booth, but it would look nice in a booth!|
|Source - I found this on Pinterest and unfortunately, the pin didn't go to the exact post.|
Look for more color grouping examples on the Vintage Show Off Facebook page!