You can use conkers (horse chestnuts) for lots of fun, crafty and practical things, but they are not the same as edible chestnuts, so avoid eating them or using them in food.

Quick Scoop

  • Great for crafts and seasonal decorations
  • Traditional children’s game (“conkers”)
  • Sometimes used as a folk spider-repellent and for DIY “eco” cleaning, with caveats

Classic: Play the game “conkers”

  • Thread a string through a conker (drill or carefully pierce a hole), tie a knot at one end, and you have a classic playground toy.
  • Two players take turns hitting each other’s hanging conker; the first to break loses. This is still a common nostalgic topic in UK forums every autumn.

“What the heck do you do with conkers?” is itself a recurring casual UK forum theme every September, with many replies just saying: “You play conkers with them.”

Crafts and home decor ideas

From seasonal aesthetics to kid-friendly art projects, conkers are perfect low‑cost craft material.

Seasonal decorations

  • Wreaths and garlands : Glue or thread conkers to make door wreaths or garlands for autumn or Christmas. They pair well with leaves, pinecones and ribbons.
  • Table centrepieces: Fill bowls, vases or jars with polished conkers for an instant autumn or Thanksgiving‑style look. Scatter them around candles (keeping them away from direct flame).
  • Christmas ornaments: Drill holes and thread string or ribbon, then paint them as baubles, stars, snowflakes or little characters.

Kids’ art projects

  • Painted decorations: Turn conkers into Halloween “eyeballs”, pumpkins, monsters or ghosts with paint or acrylic pens.
  • Rolling-paint art: Put paper in a tray, dip conkers in paint and roll them around to create random patterns.
  • “Spider web” craft: Stick matchsticks or cocktail sticks around a conker and weave yarn between them to make a decorative web.
  • Friendship bracelets and charms: Decorate conkers and string them as chunky bracelets or simple necklaces; some people treat them as “good luck” charms.

Fun, quirky and “folk” uses

There are lots of traditional or anecdotal uses that people talk about, especially in parenting blogs and eco‑living forums.

Spider‑repellent myth

  • It’s widely claimed in the UK that placing conkers in the corners of a room or on window sills helps keep spiders away.
  • Evidence is mostly anecdotal: people do it because it’s low‑effort and looks seasonal, but there is no strong scientific proof it works reliably.

Photo props and styling

  • Bloggers and Instagram users sometimes scatter conkers around seasonal flat‑lays and product photos to give an autumn vibe.
  • They work well alongside leaves, pinecones, fairy lights and other small props.

“Science” and sensory play (safety needed)

  • Steam “explosion” demo: Some guides note that conkers can pop if thrown in a bonfire because of steam buildup inside, which is used as a mini science talking point about pressure.
  • This is not safe to try deliberately; avoid putting them into fires or near high heat because pieces can fly off.

DIY cleaning and “eco” experiments

Some people experiment with conkers as a mild, plant‑based soap alternative because they contain saponins, similar to soap nuts. This is more of an eco‑blog trend than a mainstream practice.

Laundry and soap experiments

  • Laundry “soap nuts”: Cut several conkers, place them in a muslin bag and add to the washing machine in place of detergent.
  • Conker liquid detergent: Chop conkers, soak them in warm water for at least 30 minutes, then strain and use the liquid like a gentle detergent.
  • Hand soap experiments: The same saponin‑rich liquid can be used cautiously as a basic, unscented handwash trial.

Important safety notes

  • Conkers are from the horse chestnut tree and are mildly toxic if eaten; do not use them for anything you might ingest (no teas, “health tonics”, etc.).
  • If using on skin or clothes, test on a small area first in case of irritation or fabric reaction.

What you shouldn’t do

  • Do not eat them: They are not edible sweet chestnuts and can cause stomach upset if consumed.
  • Do not give them to pets to chew or eat; they can be toxic to dogs and other animals.
  • Avoid burning them on purpose or throwing them into bonfires as “mini explosions”; that can be dangerous because fragments may fly off at high speed.

Information gathered from public forums or data available on the internet and portrayed here.