When you have solid image stamps like the dress on Melanie the Shopper from Rubber Romance, you don't have to be limited to ink colors for your choices - you can still have patterns. How? Dye inks are slightly sheer. Choose a light color that will still show up over a subtly patterned print. Be sure to test it out on a scrap to make sure your ink will show up and that your print is not so busy that it overwhelms your image.
Here's a close up of Melanie:
The pink actually doesn't look all that hot on the slightly gray-ish background like that. But after you cut the solid parts out and piece your image - its really pretty...
Its still a little "floaty" on the edges so outline with a black pen to confine it a bit
Then make up your card like always....
(I design for Rubber Romance Stamps)