On the occasion of Mahashivaratri instead of consecrating (performing abhishek on) the Shivapindi with milk donate it to the needy !
If possible consecrate the shivapindi with milk. This is because milk has a greater ability to attract the Shiva Principle, resulting in the Shiva Principle getting awakened promptly. This milk is then partaken of as tirtha (holy water) benefitting the individual spiritually, with the Shiva Principle to a greater extent. Do not be surprised if those objecting the ritual of offering milk to a Shivapindi today, object tomorrow to Hindus taking darshan of God in a temple. (Instead of falling prey to misleading lies, Hindus will benefit if they follow the Scriptures.)