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bhiga posted on r/disabledgamers3w
If you have decent finger control, this might work. I use this to mouse while lying in bed, against the sheet. Note that there is a 2.4GHz USB Receiver version, a separate Bluetooth version (link below), and the box implies there's a a third version that supports both Bluetooth and 2.4GHz USB Receiver, but I haven't found that version being sold yet. Samudgate Mini Bluetooth Mouse Wireless Finger Ring Ergonomic Rechargeable Optical Portable Wearable Finger Mouse for Laptop and Tablet No USB Receiver https://www.amazon.com/dp/B0CG6DDQZH