Hundreds of sweet-toothed Buffalo Grove High School students spoke, and it seems their voices were heard.

About a month after a group of vocal teens boycotted the school’s cafeteria cookies, which doubled in price over the summer, the price returned to 25 cents.

“They just showed up one day and everyone was like, ‘We won the cookie victory!’” said Mikey Diamond, who began what quickly became known as the cookie crusade.

But the lower price wasn’t the only surprise to Buffalo Grove students. The cookies were also about half of their traditional size.

“We brought them up to the physics room [to weigh them on a science scale],” Diamond said. “We figured price per ounce. Even though the prices are lower, the cookies are less than half the size.”

After doing some number crunching, a member of the BGSACI - Buffalo Grove Students Against Cookie Inflation Facebook group reported her findings.

“That's a 6 cent per ounce increase! So we WERE BETTER OFF paying 50 cents for the old cookies!!!” she wrote on the group’s wall.

“I had about 30 kids come up to me and say, “What do I do?’” said Diamond, whose supporters had lined up to order cookie boycott T-shirts in the previous days.

“They didn’t know if it was against the spirit of the crusade” to buy the smaller, yet more affordable cookies, he said.

But Diamond gave his consent, and students lined up again, this time to sample the new cookies.

“They’re good. The consensus is they’re better,” he said, noting that the cookies come from a different vendor than the school previously used.

Once a daily cookie customer, Diamond, who refused to buy the 50-cent cookies, said he now purchases one about twice a week.

Diamond’s dad, Larry, said he was surprised at how quickly word of his son’s cookie crusade spread.

“We would go to school functions and we were like celebrities walking down the hallway,” he said, describing other community members’ reactions to meeting the boycott organizer’s parents.

In addition to resulting in cost savings and bringing fame to the Diamond family, the effort may have made an impact on Mikey Diamond’s future. After a school counselor documented the cookie crusade in a college letter of recommendation, Diamond was accepted to Northwestern University, where he plans to study mechanical engineering.

But first he has to complete the final months of his senior year, and there’s no telling what he may accomplish during that time.

What else is on this activist’s mind?

“They buy the cheapest toilet paper ever,” he said.