TorProject needs cash. fact.

maybe it sounds crazy but have you ever thought about cryptomining inside TBB,
on relays or about a TorDonationBundle?

every user could be encouraged to run a separate donating app some minutes (hours) a day
to support TorProject.

safe offline mining would enable those users to donate who have no money left or
aren't able to donate in the ways you offer.

poor english, sorry.