If you’ve ever had to lay a curve over and over again, you probably made a template from whatever you had around — a piece of cardboard, a piece of paper, maybe a moldable French curve. Woodcraft recently added a flexible template to their inventory. It’s cool because you can mimic a curve up to 37″ long. Even cooler: You can lock it to keep that curve no matter how many times you transfer it.
The locking template sells for $40, and Woodcraft appears to be the only place offering it.
Curve Template [Woodcraft]