My paper cube. List is slightly rough, since I'm starting off with cards I have on-hand and modifying it over time based on what my players like and dislike.

Archetypes:
WU Blink
UB Control
BR Sacrifice
RG Aggro
GW Midrange
WB Life gain matters
BG Elves
GU Elemental tempo
UR Spells
RW Prowess