I2C scanner not finding ATtiny using TinywireS(Rambo)

Projects Programming
3 
	TCCR0A = 2<<COM0A0 | 2<<COM0B0 | 3<<WGM00;

You're changing pin PB0 (OC0A) by timer events with this setup but that is used as SDA. Given you're using an ATtiny25/45/85, you didn't tell us.