Looking for Mega Shield w. Darlington Digital outs

I am working on a project where I need to pulse 100s of small speakers (to make clicks) and 100s of small motors (just short pulses to motors with cams - to cause small physical vibrations coinciding with the clicks).

I was planning on using the Mega board (4 of them) with 48 outputs. I am wondering if there is any kind of a shield board already out there that provides Darlington Arrays tied to all pins capable of digital outputs for interfacing with the motors / speakers. I don't need directional capability, etc. on motors - just on/off. Motors and speakers don't draw much - 200mA maybe, but only for short (1 or 2 ms) durations.

thanks for any suggestions!