Like a phoenix rising from the ashes, one of regional Victoria's most controversial pieces of art has risen again after falling victim to serial arson attacks and sabotage.

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The "bonking bales", a hay bale sculpture at Lake Charm in northern Victoria depicting a bull and a cow in the throes of passion, has no shortage of supporters and critics.

At the end of 2015, it was burnt down three times by vandals but farmer and artist Bruce Cook continued to rebuild.

"The first time it was burnt down was September on a Wednesday night," Mr Cook said.

"We put it back up and it was burnt down again on a Friday night.

"So we put it up again and at the start of December on a total fire ban day someone came and burnt it down again."

The artwork also faced other troubles last year, as vandals once again entered the property and this time instead of burning the bales, cut the hay bale twine holding the structure together.

Police also warned the farmer about the sculpture being indecent, before deciding not to proceed with charges.

In the face of criticism and vandalism, Mr Cook has not batted an eyelid and once again rebuilt the bonking bales.

"We'll always rebuild. A bit of hay is nothing. It's a bit of fun."

The Lake Charm bales have now become a local landmark and Mr Cook believes he is contributing to tourism.

"With the big banana and big strawberry, I've been asked to keep the big bull up," he said.

"We're going to keep Lake Charm on the map with the big bull.

"[People] have come from all over the world to come and see it.

"I've had people come in from Hungary, I've had people come in from America.

"Truckies, instead of coming down the coast, will come inland so they can stand on the blooming highway and take pictures of it."

With tourism interest like that, the plan is to keep the controversial artwork standing in the paddock for years to come.