What have you learnt about technologies from the process of constructing this product?
In pairs, take a picture of each other holding the kit you have used. This might just be the camera and tripod, and your Macbook but there may be other things you want in the shot.
Drop the image onto your blog and annotate it, adding all the programs and other technology you have used as screengrabs and what you learnt about it/from using it. Your written text need only be minimal. You could include reference to all the online and computer programs you have used such as youtube, flickr, blogger, final cut,photoshop,vimeo garageband, etc.