Memory Horse: A version of the LiveCD miner distribution, where you have to mine to use the OS, on older donated / refurbed laptops. Individual MMC members collect, refurb, and setup and ship to charities / MMC distributors / etc.
Donated older GPUs may also work if you have to mine for so long on any or one MMC pool before you're "pledged" - extend a "hardware" credit?
Individuals could collect as distributors, or crowd-manage through a website (.org?).
Guerilla Charity: I like the idea of shipping Qty 50 un-announced to a random charity - "Now you have to hand these out and sign up for MMC!"