Kids putting their hands into boxes with expressions of delight and disgust.
Blue squiggle

Spooky Mystery Box

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This silly sensory game is perfect for Halloween parties or rainy days.

Children reach into hidden boxes and try to guess what’s inside – from “witch’s worms” (spaghetti) to “monster eyeballs” (peeled grapes)! It’s full of laughter, surprises, and a little bit of harmless gross-out fun.


Materials

  • Several small cardboard boxes or shoeboxes
  • Small bowls or containers
  • Cooked spaghetti (for “worms”)
  • Peeled grapes (for “eyeballs”)
  • Jelly or slime (for “goo”)
  • Dry rice or lentils (for “bugs”)
  • Old socks, tissues, or similar soft textures
  • Paper and pens for guessing
  • Optional: cloth or paper to cover the boxes

Tools

  • Scissors or craft knife (for adults to cut holes)
  • Spoon or tongs for filling containers

Steps

  1. Cut a hand-sized hole in the side of each cardboard box.
  2. Place a bowl or container inside each box, filled with a different “gross” texture.
  3. Cover the boxes with paper or cloth so the contents can’t be seen.
  4. Label each box with a number.
  5. Ask each player to take turns reaching inside and guessing what they feel.
  6. Write down all the guesses, then reveal the answers at the end!

Variations

  • Nature Edition: Use natural textures like damp leaves, pinecones, or mud instead of food items.
  • Story Mode: Turn the mystery into a themed challenge – e.g. “A wizard’s potion ingredients” or “Alien samples”.
  • Blindfold Challenge: Skip the boxes and have one person blindfolded while touching mystery items handed to them.

Why It’s Great

  • Encourages sensory exploration – Helps children develop touch-based curiosity and descriptive language.
  • Builds confidence and humour – A gentle, funny way to explore “icky” feelings safely.
  • Perfect for group play – Encourages laughter, teamwork, and shared reactions.

Safety Tips

  • Adults should cut holes and prepare any slippery or food-based items.
  • Avoid any ingredients children are allergic to, and wash hands before and after the game.

Tried this activity?

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