I was installing my new front fender extension today and had 2 of the chincey plastic rivets snap off before they were even close to being snug !

I suppose a trip to an auto parts or home improvement store will find some replacements. Does anyone know of a better substitute ?

Update : Well nobody carries plastic rivets that are even close, I did find some nice black nylon bolts and nuts used for fastening license plates, just had to open the holes for the rivets in the fender a little, the ones in the extension already fit perfectly. I then cut the extra off the bolt with my dremel and fitted it up. The clearances look to be good with no tire rub.
Also fitted up today my radiator and downpipe guards from R+G Racing, pretty straight foreward...did have to replace the plastic rivets that hold the two side cowls togeather...these are available at auto parts stores...fairly standard item.