Spooky Finger Specimens

These Plaster of Paris fingers are exact replicas of my fingers and my children's fingers. It's easy to make a whole bunch of them and display them in an apothecary jar for creepy Halloween decor.
What you need: alginate, water, plaster of paris, food scale, measuring cups and cups for making the molds.
Prepare the alginate for making the mold. You need to work quickly at this step, because the alginate sets quickly.
Keep the fingers very still in the alginate for around 3 minutes. Pull them straight out once the mold feels set.
Mix together the Plaster of Paris and water. You don't need to make a large batch. Pour it into the mold, tapping the bottom of the cup to release any air bubbles. Let sit for at least 1 to 2 hours to harden. Once hard, gently pull out the finger, using the tip of a butter knife or by grabbing the edges with your finger nails. Try to not damage the mold so that you can use it again for more fingers.
Let the finger continue to dry. Then find fun ways to creep people out with your finger specimens!
Jessa
Want more details about this and other DIY projects? Check out my blog post!
Go
Frequently asked questions
Have a question about this project?
  1 question
Comments
Join the conversation
3 of 7 comments
  • Spooky but awesome! Thanks for sharing.

  • Susan Morrison Susan Morrison on Sep 24, 2016
    I wonder if there's something food safe you could make the mold with? I would love to make these out of white chocolate tinted with flesh colored food coloring for my teenagers's Halloween party.

    • Nancy Nancy on Sep 05, 2020

      Look up finger molds, there's lots of them on Etsy, Amazon, and eBay.

Next