Just for some sensorial fun, here is a set of Halloween themed matching cards.
When I was in the classroom, I had a set like this that I made with some very small stickers I found. I mounted them on black paper and laminated them and we used them for years. The children seemed to love he small size.
I looked around for funny, not scary, clip art to use for these little cuties.
There are 20 Halloween pictures in the set.