Not an ornament, but I use snowflakes to make Xmas cards. A piece of blue construction paper for the sky (folded into 1/4 to fit into an card envelope), a variety of smallish snowflakes, a bottle of irridescent glitter and a glue stick. I'd put several on the cover and one on the inside. They were always a huge hit, and no two were ever the same.
When I worked the late shift at a hotel front desk, I used to sit and cut out snowflakes all night during this time of year. Then I'd glitter them and decorate the lobby. They're non-religious, and in an area that doesn't actually get snow, a bit of winter cheer - and cheap, which was a hit with the manager. If you start with an 11x17 sheet of paper, fold it to make a square and cut off the excess. Take the excess, fold it to make a square, cut, repeat ad nauseum, you wind up with several different sizes of snowflake (same works for legal and letter size, you'll just get a bigger starting flake with the bigger sheet - I used all 3 to make half a dozen different sizes). A small bottle of glitter has lasted me over 10 years (get the superfine, it's a pain to clean up, but a small pinch scattered over a flake is all it takes), even decorating the hotel lobby 2 (or was it 3?) Decembers in a row. Some tape (or blue tack if you want to be able to save them), and that's all you need. To save them get a manila envelope and realize you'll lose a few each year to tears.
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