Since it began making a splash on the Internet two months ago, the ALS Ice Bucket Challenge has led to a multi-million-dollar increase in donations for amyotrophic lateral sclerosis, a fatal neurodegenerative disease.

In the original challenge, participants dump a bucket of ice water on themselves, donate money to ALS research and then challenge three others to do the same.

As videos poured in, the challenge began to spill over into other causes, inspiring spin-off videos to raise awareness of issues around the world.

Here are the top five cases of people putting their own twist on the ubiquitous frozen phenomenon.

The Rice Bucket Challenge

In India, a country where more than 100 million people lack access to clean drinking water, the ice bucket challenge is impractical. Instead, journalist Manju Kalanidhi began a trend that aims to combat hunger in her country – the “Rice Bucket Challenge.”

She kicked things off by donating nearly 50 pounds of rice to her neighbour, challenging others to fill a bucket of rice and give it to a person or family who could use it. Since the Facebook page was created on Aug. 23, the Rice Bucket Challenge has amassed more than 44,000 likes and spurred an estimated 4,000 pounds of donated rice.

The Rubble Bucket Challenge

Around the same time as buckets of rice began moving across India, university student Maysam Yusef launched a campaign to call attention to the conflict in Gaza. Instead of dumping buckets of ice water, Yusef encouraged people to pour tubs of rubble over their heads.

The Rubble Bucket Challenge has seen people from across the world cover themselves in buckets of sand, dirt and other debris. It also has its own Israeli counterpart – the “Hamas vs. Hummus Challenge.”

Lather Against Ebola

Following the theme of world issues earning their own ALS-inspired viral treatment, people in West Africa are pouring buckets of soapy water on themselves to spread awareness about Ebola prevention.

Ivory Coast’s “Lather Against Ebola” – or “Mousser Contre Ebola” in their native tongue – promotes proper hygiene practices by challenging those who participate to hand out three bottles of hand sanitizer after soaking themselves.

A bucket of bullets

Back in the country where the challenge first became popular, American actor Orlando Jones overturned a bucket of bullets onto himself in lieu of usual ice water. Jones says he’d like to raise awareness to combat the “us versus them” mentality that has been sparked by the Ferguson shooting.

“This past week I’ve watched an American city become something akin to a war zone,” he says in his video. Jones, a member of both the National Rifle Association and the Louisiana state police force, says he’s challenging himself to “reverse the hate.”

His video has more than 1.6 million views since being posted Aug. 18.

Matt Damon’s not-so-nice bucket challenge

Not wanting to squander clean, potable water after being challenged by Jimmy Kimmel and Ben Affleck, Matt Damon put his own spin on things by using water that would normally swirl down the drain.

Damon, a cofounder of the website, chose to dump a bucket of toilet water on himself to raise awareness for the 800 million people in the world who don’t have clean drinking water.

“For those of you, like my wife, who think this is really disgusting,” Damon says, “keep in mind that the water in our toilets in the West is actually cleaner than the water that most people in the developing world have access to.”