Payments through sub-dermal implants is sort of a desire from the whole grinders community. Here's the first attempt to achieve so.

From their website: World's first entirely safe implant, which you can use for contactless payments at any time, everywhere. Forget about the cash, card, and SmartPay solutions. Since now you can pay directly with your hand. Get your Walletmor payment implant now and make a step into the future.