The thing that really makes this movie memorable, however, are the effects. The shrews are some of the most silly movie monsters of all time, in both their puppet and dog forms. The hand puppets actually look kind of menacing, but they are still recognizably just hand puppets, and are about as intimidating as a herd of stuffed weasels. The dogs, on the other hand, just look adorable, and their outfits make them look all the more ridiculous. On screen, they look like they are just having a good time running around, but the actors have to try to make them seem terrifying with their reactions.
The shoe/tentacle detail in this lobby card is better than the movie: