car bonnet mascots

Here are three bonnet mascots , one 'bonzo' the dog in chrome with bonzo written on his collar nearly 3" high
one from mack trucks (bull dog) in bronze/brass 5" long nearly 4" high with Mack on his collar and a design patent 87931..
One very collectable bronze 'Mickey Mouse' nearly 3" high made I think in the 50s/60s.
all in A1 condition and all very heavy for their size..
These I would have thought are all from usa not sure about bonzo ..
any info very much appreciated