Did you read the other threads?
You cannot generally use a celebrity's (or anyone's) likeness for any commercial purpose without permission. Celebrities have a right of publicity - a right to capitalize off their own fame by selling the use of their image to others. Celebrities can make the bulk of their wealth through sponsorship, endorsement and advertising deals - companies will pay large sums of money to have a Brad Pitt or an Angelina Jolie in their ads.
Using a celebrity image for a toy is no different. Bobblehead dolls are made in the image of celebrities (sports starts, actors, politicians) and the creator of the Bobbleheads has been sued in the past over the use (Arnold Schwarzenegger, for one, sued successfully - and the dollars awarded in damages went to his charity). Tyco evaded a lawsuit by removing from store shelves and stopping production on their Malia and Sasha dolls, patterned after the Obama girls.
Get permission from the celebrities to use their image (in writing) and you will be able to go ahead with your toy plans without fear of a costly lawsuit.