Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

I have an old Noma SS 3.5hp machine, (actually it is my father's machine).   It is approx. 20 years old and the rubber paddles are showing some wear.  It is not at the point where there is a finger's worth of clearance between the rubber and the machine.   The original paddles are riveted in place.  Anyone have any experience on  removing these?  I was wondering what the best removal method is, (oscillating tool, sawzall, drill out heads, etc.?)    I see replacement paddles on ebay and at other internet sites and am considering changing them over if it not that big of a deal.