is there an easier-to-use sewer cap?

The sewer cap on our TT gets really tight...don't really want to wrap my hands (even in plastic gloves) around it to get a good enough grip to get enough torque to get it to come off...had an idea...

Is there such a thing as a replacement sewer cap with outer 'spokes' or handles? Seems like that would be a lot easier to use...if there isn't one on the market, could I maybe super-glue some spoke-like handles to ours?

Just thinkin'