A happy ending in my search for a stretchy, comby hairband thingy. I found one!
Actually I found seven of them and I bought them ALL, mwahahahaha. Stocked right up! I will be hair-tickle free, when desired, for many years to come.
Strange though... nowhere on the packaging does it call them anything, just 'Stylize.' I still have no idea what these things are called... so 'stretchy, comby hairband thingies' it is!