Thanks !The lowest cost solution is by using a bench supply that has current control, and a DC voltmeter. Charge each cell separately with the current limit set to 1 x C and the voltage set to 4.2V.
What exactly do you want to do? Are you planning on building your own charger?
The solution will depend entirely on the capacity of the cells. Are they 100 mAh or 10,000 mAh?
Keith