“Learn Cantonese Phonology with Ease” is a little flash programme that contains videos and animations of Cantonese consonants and vowels. It is originally created for children with speech problems by HK Education Bureau. The romanisation used in the programme is S.L. Wong system.
Download link for “Learn Cantonese Phonology with Ease”: https://docs.google.com/uc?export=download&id=0ByhatKpgoc-yUGhrSkNkQVlRRHM
Here’s the English manual. Download link: https://writecantonese8.files.wordpress.com/2010/08/manual-of-learn-cantonese-phonology-with-ease.pdf