Hi Roger,
Yes, I have seen it done.
A hypodermic syringe/needle blunted, and white glue were used. Squeeze out a drop, and on and on until you're done. When the drop dries it makes a decent looking "rivet". A bit of practice to get the idea of what size the "drop" needs to be, it's cheap practice since Elmer's Glu All is cheap! LOL!!!
I seem to remember Sig making scale rivets, but you would have to check their catalog to see if they are still available. Scale bolts, too. For bolts, Evergreen Plastics makes small diameter hex rod that you can slice off to fake hex bolt heads. Down to about .010 dia.
Big Bear