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Grid Optical Illusion Design Coffee Mug

4.8 out of 5 stars rating
22148 Total Reviews |
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Classic Mug
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Style: Classic Mug

Give a made-to-order mug from Zazzle to someone special, or treat yourself to a design that brings you joy or makes you laugh. Create your own photo mug, shop our collection of the funniest joke mugs, personalize your mug with a monogram, or express yourself with one of our 10 million designs.

  • Available in 11-ounce or 15-ounce
  • Dimensions:
    • 11-ounce: 3.2” D x 3.8” H
    • 15-ounce: 3.4” D x 4.5” H
  • Microwave and dishwasher safe
  • Use caution when removing the mug from the microwave. Use a pot holder or glove as necessary if it is too hot to the touch. Do not microwave an empty mug
  • Strong, ceramic construction
  • Meets FDA requirements for food and beverage safety
  • Printed on demand in Reno, NV
  • Do not overfill and be careful with hot liquids that may scald
  • Keep out of reach of children when filled with hot liquid

About This Design

Grid Optical Illusion Design Coffee Mug

Grid Optical Illusion Design Coffee Mug

Lingelbach Scintillating Grid Optical Illusion The scintillating grid illusion is an optical illusion, discovered by E. Lingelbach in 1994, that is usually considered a variation of the Hermann grid illusion. It is constructed by superimposing white discs on the intersections of orthogonal gray bars on a black background. Dark dots seem to appear and disappear rapidly at random intersections, hence the label "scintillating". When a person keeps his or her eyes directly on a single intersection, the dark dot does not appear. The dark dots disappear if one is too close to or too far from the image. Description from Wikipedia
NETFilmMusic
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Artwork designed by
United States
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Customer Reviews

4.8 out of 5 stars rating22.1K Total Reviews
19528 total 5-star reviews1850 total 4-star reviews341 total 3-star reviews155 total 2-star reviews274 total 1-star reviews
22,148 Reviews
Reviews for similar products
5.0 out of 5 stars rating
5 out of 5 stars rating
By Maureen Z.May 8, 2022 • Verified Purchase
Classic Mug, 11 oz
Zazzle Reviewer Program
It is a lovely mug. The actual mug is shiny and smooth. Very nice quality. It was everything I expected. Zazzle has so many nice mid century modern designs to choose from. All so pretty! The design was very clear and looked expensive.
5.0 out of 5 stars rating
5 out of 5 stars rating
By R.May 16, 2020 • Verified Purchase
Classic Mug, 11 oz
Zazzle Reviewer Program
Got a personalized coffee mug for my husband as a birthday gift from our kids. He lovessss it!! Turned out really nice! The pictures were really clear!! Great product!! The pictures were really clear!!! They turned out great!!
5.0 out of 5 stars rating
5 out of 5 stars rating
By Steven B.November 19, 2023 • Verified Purchase
Classic Mug, 15 oz
Zazzle Reviewer Program
This product caught my eye as the perfect gift that acknowledges the lifelong nurturing of mothers. All cups were individually and securely bubble wrapped for easy reshipping. (nice touch) Printing is a bit small for me to read but I look forward to blessing my daughters and others with this message of their sacrificial love. Thanks much. Printing was a challengingly small for me to read.

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Other Info

Product ID: 168327932284460433
Created on: 5/11/2015, 9:46 AM
Rating: G 
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