I'm loving the Giganticon app for Android. Makes the teeny tiny Android icons (well, they are small for me coming from a Windows Phone environment) and embiggens them to a more glorious and cromulent size. Epically good app, my chaps. 
And no, I'm not a child, old, or legally blind...
That's a larger size, there is one that is smaller but not as small as the normal icons, and it can also go even bigger, taking up an entire page for an icon. It's free for 2 widgets, but unlimited costs $0.99. Well worth it for me, though other people might just think it's a funny app.
https://play.google.com/store/apps/details?id=com.gabetaubman.giganticon
And no, I'm not a child, old, or legally blind...

That's a larger size, there is one that is smaller but not as small as the normal icons, and it can also go even bigger, taking up an entire page for an icon. It's free for 2 widgets, but unlimited costs $0.99. Well worth it for me, though other people might just think it's a funny app.
https://play.google.com/store/apps/details?id=com.gabetaubman.giganticon