I bought an el cheapo Titan 6kg SDS t'other day simply to use as a breaker, SF were clearing them out for £30.
Came with a rubber cup shaped thingy that fits over a drill bit, spins around & collects the dust - it even works!
ISTR having a smaller orange thing years ago that also worked, but I can't find it.
Any idea what they are called & where I can get them. I dare not Google for spinning rubber thingy :-)