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Fireflies LED Light-up Playing Cards

Super Cool Physics Toys

So you would like to take your card tricks to the next level? Fireflies playing cards can help. These are LED light-up playing cards that can create amazing patterns in the dark. You get 4 individually-lit blocks that light up blue or green. You can recharge 4 Fireflies at the same time.

At the touch of a button these blocks light up to create amazing patterns as you move them between your fingers. This project is on Kickstarter right now. You can find out more here.

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