Ok, 1.5 weeks ago I saw an episode of Design on a Dime, and the cool artistic guy, the husky blond one, got a microwavable bowl and put a layer of these silicon beads, then added the leaves of a plant, then another layer of beads was added, and microwaved it. Then the leaves were dried, and he added a polyurethane spray that was supposed to make it keep it's color and seel it in.
What are these silicon beads and polyurethane spray?
Where can I buy them?

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