#1 are yet another cheap copy of Colt Target grips.
I don't know the maker, but I used to see them for sale as "Colt replacement grips".
A version with a thumb rest by the same maker is for sale on CDNN for $6.99
#3 are cheap versions of Herritt grips.
These were sold at CDNN, and I've seen them on sale for as little as $5.95.
The same grip with a tuumb rest is at CDNN now for $9.95.
These often turn up on Ebay also.