Cash App’s new payment wand is pure whimsy

Cash App is introducing a new way of paying: waving a fairy-like wand. The technology is not magic. Instead, it is one of Cash App’s NFC-enabled tags, which lets users complete tap-to-pay transactions without a traditional card or phone. The $25 pearlescent wand features a light green faux gemstone at the center of its star-shaped tip, and it’s small enough to clip to a key chain. With 10,000 wands in the initial drop, the gadget is part of a broader line of Cash App tags. User...