Mono rail

The way I'd do it: have a Monorail Station that costs 120 donuts, and Monorail Tracks that cost 1 donut each. When you click to collect, the train leaves the station and follows along connected tracks, then wrecks when it reaches the end. The tax message for the building would be "Cleaning up the wreckage" or something, and you could collect once a day.

Of course, there's already three items referencing that great episode already in the game.