We bought a collapsible green screen with stand during the early days of the pandemic and used it once. It's been sitting in the corner of our living room ever since. It is free for pick up--reach out if you're interested. Please pass this along to any teachers/AV types you know who might be able to make use of it. The link the exact one we bought is here:?
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In case the link isn't working, it is currently selling for $128, and is described as:?
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EMART 107" Green Screen Stand, Professional Chromakey Background with Auto-Locking Frame, Collapsible Portable Backdrop with Adjustable Tripod, Fast Fold Designed for Game, Stream, Video