My favorite devices in order for length:
-Hanger of some sort (BIB makes a great one).
-LengthMaster (Can also be used to hang).
-Power Assist
-Size Genetics
Extender
-AutoXleeve
ADS
For girth:
-Bathmate
-Clamps (I use cable cuffs from Home Depot).
-Cock rings (Usually rubber hair bands knotted up for different tensions).
Grow on!