BIG IDEAS START WITH A LITTLE CURIOSITY

Build, experiment
& discover.

From first experiments to intricate machines. Choose their age and budget, then explore the subjects that catch their curiosity.

Find a good fit

Reset

Interests & brands

More ways to choose

Narrow by the details that matter for this gift.

Ranges are estimates, not live prices. Check the store before buying.

As an Amazon Associate I earn from qualifying purchases.

Thames & Kosmos

Gecko Run: Marble Run Flex-Corner Expansion Pack

Building & construction

Ages 8+Expansion / refill

Gecko Run19 pieces

Estimated rangeUnder $15

Find on Amazon

Thames & Kosmos

Gecko Run: Marble Run Rapid-Fire Launcher Expansion Pack

Building & construction

Ages 8+Expansion / refill

Gecko Run22 pieces

Estimated range$15–$30

Find on Amazon

Thames & Kosmos

Gecko Run: Marble Run Snake Expansion Pack

Building & construction

Ages 8+Expansion / refill

Gecko Run13 pieces

Estimated rangeUnder $15

Find on Amazon

Thames & Kosmos

Gecko Run: Marble Run Speed-Kick Expansion Pack

Building & construction

Ages 8+Expansion / refill

Gecko Run17 pieces

Estimated rangeUnder $15

Find on Amazon

Thames & Kosmos

Gecko Run: Marble Run Spinners Expansion Pack

Building & construction

Ages 8+Expansion / refill

Gecko Run13 pieces

Estimated rangeUnder $15

Find on Amazon

Thames & Kosmos

Gecko Run: Marble Run Starter Set

Building & construction

Ages 8+

Gecko Run63 pieces

Estimated range$30–$50

Find on Amazon

Thames & Kosmos

Gecko Run: Marble Run Trampoline Expansion Pack

Building & construction

Ages 8+Expansion / refill

Gecko Run12 pieces

Estimated rangeUnder $15

Find on Amazon

Thames & Kosmos

Gecko Run: Marble Run Twister Expansion Pack

Building & construction

Ages 8+Expansion / refill

Gecko Run13 pieces

Estimated rangeUnder $15

Find on Amazon

Thames & Kosmos

Kids First: Boat Engineer

Building & construction

3 to 7

Kids First52 pieces

Estimated range$30–$50

Find on Amazon

Thames & Kosmos

Marble Run - Essential 70-Piece Set

Building & construction

Ages 6+

71 pieces

Estimated range$30–$50

Find on Amazon

Learning Resources

Simple Machines Set

Building & construction

Retailer: 8 Years and Up

Estimated range$30–$50

Find on Amazon

Learning Resources

STEM Explorers Machine Makers

Building & construction

Retailer: 5 Years and Up

Estimated range$15–$30

Find on Amazon

Learning Resources

STEM Explorers Motioneering

Building & construction

Retailer: 5 Years and Up

Estimated range$15–$30

Find on Amazon

Learning Resources

Tumble Trax Magnetic Marble Run

Building & construction

Retailer: 5 Years and Up

Estimated range$15–$30

Find on Amazon

Ravensburger

GraviTrax BASE Starterset

Building & construction

Ages 8+

Estimated range$50–$100

Find on Amazon

Hape

Quadrilla Stack Track Bucket Set

Building & construction

From 4 Years

Estimated range$100–$200

Find on Amazon

Use “Show my toys” to apply your filters. Enable JavaScript to save favourites, copy shortlists, choose comparisons and expand details here..filter-toggle,.save-button,.details-button,[data-compare-id],.comparison-tray,.shortlist-share{display:none}.filters-panel{display:block!important}

[data-compare-id],[data-compare-clear],[data-compare-share],[data-compare-remove],.comparison-tray,[data-gift-list-open],[data-gift-list-toggle],#gift-list-dialog{display:none!important}

New for 2026.

Build, experiment
& discover.

Find their next
favourite thing.

Know what they love?

Follow their curiosity.

Gecko Run: Marble Run Flex-Corner Expansion Pack

Gecko Run: Marble Run Rapid-Fire Launcher Expansion Pack

Gecko Run: Marble Run Snake Expansion Pack

Gecko Run: Marble Run Speed-Kick Expansion Pack