Floating bubbles
Hit the pause button and then go to the buy catolog and buy a fish tank wich is in the miscellaneous section and place it anywere in the house. Then go to the grab mode and grab it then hit square to sell it. Before you exit the grab menu look at were the fish tank was, and there should be floating bubbles.
More tricks, tips and cheats for this game are right here - The Sims 2 cheats
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