A few years ago, I released a series of number templates. They are simple, versatile, and, being sized 1200×1200 pixels (the numbers, themselves, are a little less), more than one can fit in a conventionally sized layout. And, of course, they’re free. Always a bonus! 🙂
However, if you’re looking for something a little fancier, and are willing to pay a little, I’ve found these amazing templates by Cornelia Designs at GingerScraps. These are so cute. I just love them. As yet, only #1 and #2 are available.