PWM for 8 LED's with only 6 pins available?

Other Hardware LEDs and Multiplexing
2

So you have 40mA+ into LEDs fo 200mS with no resistor?

Here's a typical Red LED

Supports a surge current of up to 0.1A.
But only for up to 10uS

What LEDs are you using that are tolerant of the higher current for so long?