http://dollarstorecrafts.com/2017/09/make-foam-halloween-decor-from-dollar-store-stuff/
The dollar store has so many awesome Halloween decorations that are wonderful for crafting with — including foam pumpkins and skulls. Transform these dollar store finds into upscale party decor with just a few steps. I love these ideas — a foam skull vase and pumpkin candy displays. Find instructions at Persia Lou: [DIY Skull Vase and Halloween Party Decor]
Skull Vase Project Estimate:
Total cost: $2 and up