So you want to create a miniature effect like this :
Without having to buy one of these:
Easy! just download the (free for this week!) ShrinkRay plugin from Crumple Pop. Even if you don’t own FCP3 now, get it in case you decide to buy it later on! They also have a few other cool free FCP plugins, pay them a visit.
I prefer using this plugin to the Photoshop action filter because (1) I dont have to go into photoshop and (2) the controls are easier to manage.
Thanks to FinalCut Montreal for pointing out this promotion.