Josh Jakus makes cool bags, but his website makes them even cooler. If you click into the Um Bag section and stay there for a second or two the backs automatically animate to unzip themselves with a great zipper sound effect. In theory this could be very bad, but In practice it is great! It is fun, memorable and a great way to show of the product’s unique feature.

Check it out. My crappy animated gif doesn’t do it justice. Also, there is a small text link below the image to make it happen over and over again (just thought you should know, because I couldn’t help but click it a million times).