I usually get the Halloween/Fall edition of Make Magazine, which has a ton of projects. They have a selection of them on their site: https://makezine.com/tag/halloween/.
The current issue doesn't seem that Halloweeny, but if you can get the back issues they are fun to have for decor, too.
The current issue doesn't seem that Halloweeny, but if you can get the back issues they are fun to have for decor, too.