Here is a list of tool we can use to make trailers. Everyone put the tool here and paste where to find it:
I movie
http://www.apple.com/imovie/
Puppet pals:
https://itunes.apple.com/us/app/puppet-pals-hd/id342076546?mt=8
Pow Toon:
https://www.powtoon.com/
Canva
https://www.canva.com/
Adobe Spark
https://spark.adobe.com
Animoto
https://animoto.com/
Tellagami
https://tellagami.com
Genial.ly
https://www.genial.ly