I wanted to use the picture word flash cards but when i tried changing to common words such as saw or drill (Im a Tech teacher) the pictures were not only a poor standard but strange and slightly sadistic looking, where do you source your pictures they are completely inappropriate and weird - thought I'd better inform you so that you can make relevant changes.
Sorry about this, safesearch is enabled in the Flickr search, but I guess the site isn't that well moderated! I'm working on a new version using Yahoo rather than Flickr and the results are looking much better for single keyword searches, at the moment you really need to use multiple search words to get the right image consistently. Eg put 'electric drill' in the search box and 'drill' in the word box. You're not the first person to mention this and I am making changes!