In India's battle against Covid 19, how can celebs help?

A lot of celebrities have come forward to help India in this situation, by either donating/helping out themselves or raising funds through their fanbase, a lot of social media personalities. I was wondering if social media challenges would help at such times. Like the ALS ice-bucket challenge which raised huge amounts, but this time idea would be any fan would post a fun task with some target value, and other fans would donate to raise the value of it. Once the total amount of the donations reach a particular value, the celeb will perform the task on their social media. The amount gets donated and the celeb increases their fanbase engagement. Is this a more effective way to raise money? Can this work on Instagram?