You can help your pupils to speak foreign languages with these apps:

Puppet Pals HD or Sock Puppets:

Create short dialogs / videos. The funny part is in Sock Puppets that the voice is like in the "Alvin and the Chipmunks".

Vocaroo

Vocaroo allows students record their speech using a computer mic. Click Record and the recording can begin. The output can be easily shared by capturing the link.