BROOKFIELD, Wis. -- Six seniors who built a swing set on the roof of Brookfield East High School won't be banned from their graduation ceremony Saturday after all.

The seniors were given three-day suspensions, including the commencement ceremony, for the prank, but administrators relented Friday.

Elmbrook School Superintendent Matt Gibson told the Milwaukee Journal Sentinel that he and East Principal Brett Bowers decided they should allow the seniors to participate rather than detract from the event. The students include the class valedictorian.

One of the students, Nate Hoaglund, said they were trying to show that seniors don't have to use violence or vandalism to outdo last year's prank. He said they were careful not to damage anything.

Plans called for the set to be donated for a playground.

"We chose the prank because it was so harmless in our opinion. We also thought some good could come of it by donating it to some worthy cause," said Alexander Holiday, senior class valedictorian at Brookfield East High School.

The students climbed up to the school's roof early Wednesday morning and built the swing set. An overnight construction worker noticed the students and called authorities.

Parents of the students appealed the suspension to the superintendent.