Density Converter
This calculator tells you how to scale graphics between four density groups—perfect for building out applications across different devices.
Think Again: Assumptions About Mobile To Reconsider | Smashing Mobile
Makeappicon
Generate app icons of all sizes in a click!
Android Icons
Androidicons is a professional, handcrafted icon set with 250 icons in 14 different colors and 5 sizes, including an icon font and all sources.