That could be one option I hadn't thought about. Set aside an amount from the top earners each day. It will be theirs, but it could only be used with the steemit platform. Given away to others, as such. It could not be withdrawn.

I would suggest, though, that needy projects should be the ones to receive the donations. Those endorsed, by vote, from the steemit populace. That way, the rewards would not be easily given to accounts of friends and family or themselves (through anonymous accounts). Thanks for your input.