Deanna,
Do you have software that will allow you to add text to your designs, or is your machine capable? It'll probably be easier to find the appropriate design and add the text you're looking for.

Try www.annthegran.com for lots of free designs.
www.emblibrary.com has tons of designs that are well digitized and very fairly priced. Or just do a google searcg for 'machine embroidery design' and nativity, etc. There are tons of patriotic designs out there, but I'm getting ready for bed. If I have time tomorrow night I'll try to hunt a few down for you.

Good luck!

Laura

contact me with some pictures you are thinking of doing and i should be able to knock something up for you