I'm looking for something very 'squashable' to fill a small gap between
a (slightly bowed over time) worktop and an induction hob. Most
draught-excluder type tapes I see are too resilient to fill the gap,
since they retain their thickness all around. I want something only a
few mm thick, but which can easily compress like weak sponge to almost
nothing where required. Does this sort of stuff have a special name?