Hand retractable plungers

My husband used to be a district foreman of a large multiple apartment complexes. Some of the daily needs and problems that arose on the emergency pager can be ridiculous. In the winter time  at least every other night in the middle of the night there were multiple calls of no heat emergencies. The owner of the complex  always tried to save money by not repairing things properly. At one point a hand retractable plungers solved a lot of the problems when installed of course as needed per unit for the owner.