I don't think shaazam has ever worked, but I use familyFunds all the time. You have to first enter testingcheatenabled true, and then type in familyFunds [family last name] [dollar amount], taking out the brackets.
So if you want the Landgraabs to have only 1,000 you would enter:
testingcheatsenabled true (enter)
familyFunds landgraab 1000 (enter)