This product was funded on Kickstarter earlier this year, raising $170,277 of their $34,500 goal.
Last year, a how to video on how to scramble an egg in its shell (using a t-shirt sleeve) got a lot of attention. I tried it and it was a failure. :( I'm assuming this product was inspired by that video.
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I saw that video too, but it worked with my t-shirt! What colour was your t-shirt?
Dododex