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$Math Dice Jr.$

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ThinkFun

Math Dice Jr.

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Now: $9.99
$Math Dice$

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ThinkFun

Math Dice

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Now: $9.99
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Copernicus

Mystery Stick

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Now: $5.99
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Copernicus

Human-powered Light Bulb

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Now: $4.99
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Westminster

Drinking Bird

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Now: $10.99
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Copernicus

Prism

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Now: $12.99
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Copernicus

Gyroscope

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Now: $12.99
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Schylling

Jacob's Ladder

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Now: $4.99
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Plus-Plus

Plus-Plus Mini Theme Tube

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Now: $9.99
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House of Marbles

Magnifying Glass

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Now: $4.99
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House of Marbles

Compass

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Now: $4.99
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House of Marbles

Junior Adventurer's Binoculars

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Now: $12.99