Add/Subtract T-Shirt

Ash

This Sidney Harris Mars Probe cartoon demonstrates that all is fair in love, war, and interplanetary exploration.

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Fibonacci T-Shirt $24.00 – $25.00

Navy

From daisy petals to seeds of corn, Fibonacci’s sequence explains numbers found in nature.

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Glows in the dark

Summer Star Chart T-Shirt $24.00 – $25.00

Navy

Small Medium Large X-Large XX-Large +$1.00 Youth Small 6-8 Youth Medium 10-12 Youth Large 14-16

Printed upside down in glow-in-the-dark ink so the wearer can really use it.

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Spleen T-Shirt $24.00 – $25.00

White

Another great medical cartoon from Sidney Harris and Cotton Expressions.

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Glows in the dark

Winter Star Chart Shirt $24.00 – $47.00

Navy

Small Medium Large X-Large XX-Large +$1.00 Youth Small 6-8 Youth Medium 10-12 Youth Large 14-16 Sweatshirt Small Sweatshirt Medium Sweatshirt Large Sweatshirt X-Large Sweatshirt XX-Large +$2.00

Printed upside down in glow-in-the-dark ink so the wearer can really use it.

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Einstein Simplified Shirt $24.00 – $47.00

Purple

Small Medium Large X-Large XX-Large +$1.00 Sweatshirt Small Sweatshirt Medium Sweatshirt Large Sweatshirt X-Large Sweatshirt XX-Large +$2.00

Einstein simplified, in three easy steps.

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Maid T-Shirt $24.00 – $25.00

Ash

Someone has to clean up after all those particle physicists.

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Opposites Attract T-Shirt $24.00 – $25.00

White