So, I have shown two clean-and-simple ways to use a large background stamp: 1) as a, well, background all over the card, and 2) as a trio in my favoritest layout ever. Now, let's see how it can be used as a border for a REALLY BIG sentiment.
After I'd punched the three squares from the scrap I stamped with the Looped Flower Pattern stamp from Hero Arts, I still had a lot of the scrap left. Using it to make a border provided just the right graphic interest when paired with the big birthday sentiment from Papertrey (don't know the name...sorry!). Carrying the hot pink over to the sentiment helps unify the two parts of the card and was easy enough to do with post-its on the sentiment.
stamps: Hero Arts, Papertrey
accessories: glue, post-it notes (for masking the sentiment)