I can't find any on Google that specifically are made without the data lane. Maybe these magnetic ones don't do data[0]. Could also try burning the data lanes on the lightning part of the cable[0] (although you might have issues if it's a lightning-to-C cable, I would guess it uses the data lanes for power negotiation).
0: https://www.alibaba.com/product-detail/3-in-1-cable-led-ligh...
1: https://nyansatan.github.io/lightning/