4x regular lightsaber hilts.
2x Double bladed lightsaber hilts (which could be cut in half and used as regular sabers too).
Sockets for lightsaber blades are 2.6mm in diameter. You can fit any plastic tube of that diameter or get custom lightsaber blades from the shop here...
Do to the small size of these pieces I would recommed ordering them in Frosted detail or Frosted Ultra detail materials. Details will be sharper and crisper than in the default white and flexible plastics.