I did my weekly search of Craftig last night and added these to my "I want to try this" list.
Paper Tombstones from Cheeky Magpie. These little guys are made to stand upright but I think you could use them on handcrafted Halloween cards.
Look more garland...I haven't even tried the leaf garland yet...but I could see this idea being changed up for any season or theme. This tutorial is from Quiltish.
Finally take a look at this Playful Partridge Ornament from Retro Mama. It reminds me of my Grandma Rechtin, her tradition was to make each grandchild an ornament for Christmas. This looks like something she might have made for us.
Guess I'd better get back to the costumes..