I wish to add YouTube videos to my site as links - I want to use a thumbnail of the video. I'm not concerned with which thumbnail used (as discussed here: How to control preview image in Youtube)
What I am concerned with is how the play etc. buttons look on a thumbnail (i.e. everything reduced in size from how it would appear in YouTube).
What options do YouTube themselves offer? And what about 3rd-party solutions?
Facebook for example does this quite well - the thumbnail is not too cluttered and will expand when clicked onto to a usable size to view the video at a reasonable size on the same page (an example of my requirement for behaviour when clicked).