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Nephew's Christmas present. Cash hidden in a glued shut wooden box encased in expanding foam. Obligatory red herring of trail mix on top. Try opening this gift in 2 seconds! : r/funny
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how to use expanding foam packaging - YouTube
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mini foam® Expanding Foam Bags - Ameson | Protective Packaging Manufacturer, Air Cushion, Paper Void Fill
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TONESPAC 15”x 18” 4 PCS Instant Pack Quick Expanding Foam X-100 Packaging Bag for Packaging and Shipping - Yahoo Shopping