Check out this fantastic tutorial for cocktail napkins at The Purl Bee. You could do these for any holiday or any time of year.
Sewing Stars has posted a cutesie little skeleton that you can print and cut out. If you put it together with brads, it’s movable. I think it would look really cute in a little apron.
And this one’s not Halloweeny, but Turkey Feathers has a tutorial up for a beautiful Autumnal patchwork pillow (again, of course you can adapt it to different seasons).
Check out the Joyful Abode coloring page, too!