You mean perhaps a module like this


It´s a working square shaped dmodule on a working MK2 060 board that runs at 64 Mhz and can be found for just 5 Euro at
THIS Ebay auction. I know what I´m talking about, also have got one of his modules in my A3640 board that runs at 32 Mhz (64 Mhz crystal) ...