On the first day I showed how to make a flat star into a 3-D star by scoring and folding. There are other ways to to make a flat star into a three dimensional object.
Two cut-out stars glued back to back with a few additions work quite well.
Another simple way is to slot two flat stars together. You can print out a page of stars (all the same size) here and cut to match the image below. If you lay your two stars together and pierce a hole through the centre of them both for your starting point, it will make cutting the slots easier.
You can glue several stars back to back after folding them along a vertical line.
Cut three stars and fold in half so they look like the image above. Glue matching halves of two stars together, then glue third star to both. (You can use this technique to build a star from more than three cut-outs.)
If you want an even more three dimensional star, cut out twelve stars and score them from notch to notch.
Fold along the score lines, then assemble as follows:
Glue one point each of five stars to a central star, then glue their adjacent points together. You should have this:
Do the same thing with another six stars:
Now glue the two assembled parts together. (This is easier to do than to explain!)
You can use any of the stars above as hanging ornaments, or you can mount them on bamboo skewers and use them instead of flowers.