Suck it up. Heh.
Sanding on the lathe I position the central dust flex duct pickup as close as possible to the action. I haven't seen any sanders small enough to fit inside a bowl that have an integrated dust pickup. Maybe you could rig up a small vac hose. For exterior sanding I use a larger sander with a hose connection. I also have a ceiling mounted ambient air filter and a 3m ppr.