For my own twin girls I used one pattern with pink scrappies and the same pattern with purple scrappies. I used the delectable mountains pattern by Bonnie Hunter.
http://quiltville.com/delmts.shtml
I had mainly fat quarters for the twin's quilts and bought backing. I used a 1 yard piece for the border.
For my daughter's triplets I used the same pattern and the colors she picked for each baby girl, pink, yellow or green.
Triplet baby girls' quilts? Any ideas? For their quilts I used a center block with a son bonnet sue that was partially in the making. the little squares came from scraps some one gave me to help me make these quilts and border, binding and backing were bought so they could match.
For both the twins and triplets I used scrap patterns as it turned out to be too costly to buy all new fabrics, just the borders and or backing for multiple quilts became pricey. I made my own simple pattern for the triplets quilts.