I wanted a Harry Potter pumpkin design that wasn't extremely difficult, and I found a sorting hat on Pinterest, but that site had no stencil download. It was frustrating enough that I just created it myself. Here's the final product:
And how it looks in the dark:
I refined it a little bit after creating this design, and made a PDF for others available to download, so no one else has to be frustrated at finding this design.
I even used this stencil on a foam pumpkin to use for multiple years - works great!