Upgrade a cookie dunker
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Modify a cookie dunker to hold and dip cookies more easily using recycled materials, simple mechanics, and testing to improve dunking performance.

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Step-by-step guide to upgrade a cookie dunker

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DIY Easy Heart Cookie Cutter

What you need
Adult supervision required, cookies for testing, paper clips, popsicle sticks, recycled cardboard, rubber bands, scissors, small cup for milk, straw or wooden skewer, tape

Step 1

Gather all your materials and pick the cookie you want to dunk.

Step 2

Wrap a rubber band around one end of two popsicle sticks to make a hinge.

Step 3

Bend a paper clip into a small hook shape that can catch the edge of a cookie.

Step 4

Tape the paper clip hook to the far ends of the popsicle sticks so it faces outward.

Step 5

Cut two small rectangular cardboard pads about the size of your thumb.

Step 6

Tape the cardboard pads to the inner tips of the popsicle sticks to protect the cookie.

Step 7

Tape a straw or wooden skewer along the back of the popsicle sticks to make a long handle.

Step 8

Place the cookie on the paper clip hook and gently squeeze the sticks together to hold it.

Step 9

Pour milk into the small cup until it is about half full.

Step 10

Lower the cookie into the milk using the handle so the cookie edge touches the liquid.

Step 11

Lift the cookie straight up to see how well it held together after dunking.

Step 12

Try two or three different dunk times to find the best balance between soggy and firm.

Step 13

Cut a small cardboard circle to use as a drip catcher under the cookie.

Step 14

Tape the cardboard circle underneath the cookie holder to catch drips.

Step 15

Share your finished cookie dunker on DIY.org.

Final steps

You're almost there! Complete all the steps, bring your creation to life, post it, and conquer the challenge!

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Help!?

What can we use if we don't have popsicle sticks, a paper clip, or a rubber band?

Use two flat wooden craft sticks or short paint stirrers in place of popsicle sticks, bend a thin piece of coat-hanger wire or a sturdy twist tie into the hook shape from step 3, and substitute a small hair elastic or twist-tie loop for the rubber band hinge in step 2.

The cookie keeps slipping off or cracking when I squeeze the sticks — how do I fix that?

Make a deeper hook when you bend the paper clip (step 3), add extra tape over the taped hook ends in step 4, and be sure to tape the cardboard thumb pads from step 5 to cushion and distribute pressure so the cookie grips without breaking.

How can I adapt this activity for younger kids or older kids to make it safer or more challenging?

For younger kids, have an adult pre-wrap the rubber band hinge (step 2), pre-bend and tape the paper clip hook (step 4), and cut the cardboard pads (step 5), while older kids can change hinge tension, experiment with precise dunk times (step 11), or design a sturdier handle from a wooden skewer (step 8).

What are easy ways to upgrade or personalize the cookie dunker after making the basic version?

Add a second paper-clip hook to hold two cookies, tape a ruler along the straw or skewer handle to set repeatable dunk depths for step 9, decorate the popsicle sticks and cardboard circle (steps 5 and 12), and then share photos and Dunk Time results on DIY.org (step 13).

Watch videos on how to upgrade a cookie dunker

Here at SafeTube, we're on a mission to create a safer and more delightful internet. 😊

Top 10 Cookie Decorating Tools - Beginners Guide to Cookie Decorating

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Facts about engineering and design for kids

♻️ Many easy dunker parts can be made from recycled cardboard, plastic bottles, and bottle caps, turning trash into tools.

⏱️ Timing matters: most cookies soften in about 1–3 seconds of dunking, so adding a simple timer or stop mechanism helps reproducible results.

🍪 Dunking a cookie briefly in milk or tea softens it and releases more aroma and flavor — but dunk too long and it can fall apart!

🔁 Engineers improve designs fast by prototyping and iterating—build a quick version, test it, tweak it, repeat!

🛠️ Simple machines like levers, pivots, and elastic-band catapults can give you precise, repeatable dunking motion without motors.

How do I modify a cookie dunker to hold and dip cookies more easily using recycled materials?

Start by observing how the dunker currently holds cookies. Sketch simple ideas like a clothespin clamp on a long handle, a cardboard cradle with rubber-band tension, or a pivoting arm from a recycled bottle. Cut and assemble parts with tape, glue or hot glue (adult help recommended). Test with different cookie sizes and mug heights, note failures, then tweak grip, length or angle until dunking is steady without breaking cookies.

What materials do I need to upgrade a cookie dunker with simple mechanics and recycled parts?

Gather recycled cardboard, a plastic bottle, clothespins or binder clips, popsicle sticks or skewers, rubber bands, pipe cleaners, straws, a small cup, tape and scissors. Add hot glue and a ruler/marker for measuring, and optional small springs or foam for cushioning. Use adult supervision for cutting and hot glue, and choose kitchen-safe materials for any parts that will touch cookies or mugs.

What ages is this cookie dunker upgrade activity suitable for?

Suitable for ages 5+ with adult help: children 5–7 can choose materials and glue or tape simple parts while an adult handles cutting and hot glue. Ages 8–11 can plan, measure and build basic pivots or levers with supervision. Teens (12+) can design, iterate and add springs or clamps independently. Always supervise tool use and ensure food-contact surfaces are clean and safe.

What are the benefits, safety tips, and fun variations for a cookie dunker upgrade project?

Benefits include hands-on STEM learning, problem-solving, fine-motor practice and recycling awareness. Safety tips: supervise cutting, hot glue and small parts; smooth or cover sharp edges; keep food-contact surfaces clean or use food-safe tape; avoid treated plastics near hot liquids. Variations: make a timed dunker, a cookie-size sorter, or a height-adjustable arm. Test and iterate—failed designs become great learning moments.
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Upgrade a cookie dunker. Activities for Kids.