Hi VM and Norm,
If you search eBay for " wave washers crinkle washers " there are hundreds or more.
A Google search for mower wave washers crinkle washers sale will also work.
I don't usually ever damage the wave washers as I just lever the retaining clips ( star lock washer clip) with a big screw driver sometimes the plastic gets a little deformed around where the cap clips on in the centre but that straightens out again with pliers.
Cheers
Max.
