How to get the gnome on sims?

to put a cheat you need to hold: "ctrl" "shift" "c" :at the same time. the it depends which kind of sims. in sims 2 you put "boolprop testingcheatsenabled true" in sims 3 you put "testingcheatsenabled on" but i really dont know how to get a gnome. the buy catolog? and if its not there you can always download it free and nothing happens to your computer guaranteed. you download it on thesimsresource.com you need to make an account (the "register" button) and then you can get things. try looking up gnomes and there is alot of chances you will get what you want.