Outside a Pop Mart store in Vietnam there is a line around the block at 2am. The cause for all this excitement is the latest blind box release of a limited edition figurine … otherwise known as an art toy. In case you’re not familiar, these figurines are collectibles that allow customers to “express creativity, find joy and connect with others.” That’s a quote from an executive at Pop Mart (obviously) but he’s not exaggerating that there are plenty of customers who devote hours to building their...