See how old Lego bricks are used as a mold for molten aluminum. We create a custom furnace to melt down scrap aluminum. The liquid metal is then poured into the Lego mold, destroying the bricks but ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Concrete countertops are just one of the many kitchen countertop options to choose ...