On the Ebon Hawk, talk to each member of your crew. You can ask each one to make you specific items:

Mission - Security Spike/Play Pazaak

Canderous - Arenal stimulants
HK-47 - Fighter simulation (shooting mini-game)
Jolee - Medpack
T3-M4 - Computer Spike
Zaalbar - Grenades
Juhani - Annoying accent and whining
Bastila - Crazy visions
Carth - Goatee styling tips