I have used the Chrome ADM template to only allow Flash on a select few websites and that works a treat using the "Only allow plugins on these sites" setting. The problem is that the sites where its now blocked (Flash Game sites) gives the students an option to enable flash when right clicking on the page.

Is there anyway I can stop the students from re-enabling flash?

I am doing this as the school do not want to use a white list for Internet Filtering and I want to find the best way to stop flash games on the web without playing catchup and blocking each site one by one.