Lenovo USI Pen 2 snaps magnetically onto the back of Pixel Tablet; it gets a little cockeyed, but overall stays attached well.
It doesn’t _quite_ feel like the experience you’d expect from something made to work that way, but it even stays attached in my backpack and can stay on the tablet on the Charging Speaker Dock.
I saw some reviews saying the pen was not magnetic, but I think the tablet’s top magnets are just holding onto the internal metal/battery.
I grabbed one used (yay saving money and reducing e-waste!), and would recommend it! The more expensive Penoval USI 2.0 stylus apparently works similarly, but was out of stock everywhere. No complaints from me with the Lenovo USI Pen 2, though.
Just don’t make the same mistake I initially did and assume the “U” in “USI” means “Universal.”
Wait, it actually does—but USI 2 displays are NOT necessarily backwards-compatible with USI 1 pens, while USI 2 pens work with both USI 1 and USI 2 displays.