iphone/ipad icons for WP network sites

Hi,

I am running 3 WP sites in my multisite network, where I have WP MU domain mapping installed to manage my subdomains.

I created a apple-touch-icon.png file for iphone/ipad homescreen, and it worked, but it’s the same for all the WP sites.

Is it possible create three different icons and assign them to their respective websites?

Bear with me here, I’m not a web developer. Far from.

Thanks.