sowaka 6 Pcs Tether Lanyard for Touch Pens Coil Spring Tablet Pens Straps for Tethering Drawing Pen to Touchscreen

I use these for my work laptop in the field (public works), and the tether seems to be fairly durable (within reason — don't freaking tug on it and drag a 5 lbs. computer to you, etc.). For its price, you get a few replacements, and they have different colors; great value, considering Biden-flation.