What were the names of the two atomic bombs that Albert Einstein made?

Answer 1

Einstein did not personally make any atomic bombs, nor was he particularly involved in the Manhattan Project. (He couldn't obtain the necessary security clearance. and scientists in the project were actually forbidden from consulting with him about it.)

The names of the first two bombs were "the gadget" and "Little Boy." The gadget was the one used in the Trinity test firing, and was a test of the design used for the third bomb, "Fat Man" (Little Boy was considered a simple enough design to not need a test firing, but the gadget and Fat Man were more complicated.)