I don't know if anyone had already posted this, but I discovered it tonight so I thought I'd share it. I noticed that when you create a homescreen weblink, if the site doesn't have a custom icon, it makes one which approximates to what can be seen on your screen at the time. What happens if you zoom into an area and have another go? Hey presto, a custom icon of whatever you want it to be! Zoom in on a logo and create the link. You have an icon with the website logo on it. Anyway ifeel quite chuffed that I discovered this all on my own. Apologies if it's already been posted; I thought I'd share.