I hope you were able to find some good stuff on Pinterest.
One of the best ones last year we did was taking a white paper plate and taping /stapling white streamers from the bottom and gluing googly eyes on and drawing a nose and mouth to make a ghost they could hang up or pull around on a string so that the streamers would bellow out behind it.
Today we did "Thumbkin patches" where the kids dipped their thumbs in orange paint and made thumbprints all over the paper. I wrote "Welcome to my Thumb-kin patch" across the top and then drew a tiny green stem on each 'thumbkin' when it dried.
We also did Halloween stamps dipped in Black and Orange paint this year
And we did Eyeball bracelets where you glue a lot of googly eyes on a ribbon or Bristol board and make it into a spooky eyeball bracelet.
In the past I would have kids decorate or paint and glue things on a real pumpkin (Small one) and they could take it home. This year I cut it out of bristol board instead and let the kids decorate that instead
I hope you found something cool on pinterest and had a fun time