What about some barrettes for girls. Look up ribbon flowers and lollipop flowers for a couple of basic flower designs. Your ribbon is a bit wide for most uses. I think if you experiment a bit you could come up with something. Really big, overstated barrettes seem to be popular for special occasions.

How about taking a small Christmas ball ornament, plain colored or the clear glass ones and gathering a square of the organza ribbon around it. Add a dangling piece of jewerly or whaever to the bottom. Hope this makes sense.

Here is a tute for ribbon angels. They would look nice on a wreath as well as an ornament. It might be nice to make something more unusual as well, but I'm not sure what that would be!
Kathy

Here is a link that might be useful: Ribbon angel tutorial

I like these Christmas trees, tho I would prefer a star to a bow at the top.
Kathy

Here is a link that might be useful: ribbon christmas trees