Larry Sharpe and naming rights to parks, Bridges, even adaptable to School Buildings. In return for paying and managing the maintenance of these things, even instead of pulling down a statue, allow someone to place a rebuttal statue in an agreeable spot in a park.
Even a properly placed bike lane could be done this way, and road can be totally cared for by the person given the naming rights, or even ownership of the lane.
With park naming situation, it may have to be treated like a conjoined park, where it holds both names in the same area, since people may have trouble finding it for the first while. Who knows maybe we can get a top bid from Queen E to keep her name there fully. Someone could outbid, and offer to fix the bridge and few more million in roads nearby and attached, and so on.
Granted many are badly planned, bike lanes, but at a time, I am sure some real good ones will be possible, and only if a private interest can take an interest to take care of the road for the lane or naming rights of it.
Community Centres can also work this way.