Here's a useful bell template for your Christmas crafts, which comes in a variety of sizes.
Bell Template
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Tree Template
This pretty tree template could be useful for all sorts of crafty nature or Christmas projects! And of course it makes a very simple colouring page for the youngest children, too.
Teardrop Tree Template
Use this teardrop tree template for your collage and craft projects, at Christmas (it makes a lovely simple Christmas tree for children to cut out) or any time.
Star Template
Here is a handy star template for your craft projects, available in a number of different sizes.