By November 2, 20-year-old massage student Ysiad Ferreiras expects he will have made a net profit of just under $100,000 for a business he started in July.

“That’s not bad,” he says “but it’s not where I want to be.”

At the end of June, Mr. Ferreiras designed a simple logo with a red circle and slash over a cartoonish depiction of President Bush, which he recently trademarked. On July 2, he received his first shipment of 144 T-shirts with his design, which he sold at Union Square in about 10 hours.

Now Mr. Ferreiras has about 40 people selling his T-shirts and pins throughout America, and he has had as many as 30 distributors selling his goods in New York City alone. Since he started selling T-shirts and buttons in July, he’s grossed more than $250,000 in sales.

Mr. Ferreiras, a registered independent and a University of Pennsylvania dropout, says the primary purpose of his business – Disarm Bush – is to make money, not a political statement.

“I’m not a Democrat, but I am registered to vote. My politics are irrelevant. I saw this as a great business opportunity.”

It certainly has been a tremendous moneymaker – and not just for Mr. Ferreiras. Hundreds of pin, sticker, and T-shirt sellers have descended upon New York, many of whom previously had been street merchants selling goods such as belts or beaded Chinese slippers. The Republican National Convention provided the initial impetus to capitalize on political fervor.

Kerry Riter, just one of Mr. Ferreiras’s resellers, says he makes between $450 to $600 a day during the weekends by selling Disarm Bush T-shirts and pins, and some of Mr. Ferreiras’s resellers earn between $1,800 to $2,000 a week.

The competition is fierce, though. On any given morning, there may be a dozen merchants selling anti-Bush buttons at Union Square – ironically, few of whom call themselves Democrats.

Another pin seller, who only gave his first name, Richard, says he doesn’t subscribe to the politics of the Republican or Democratic parties, but he came from Boston to sell anti-Bush pins at Union Square because he wanted to make some money.

“There are more people here than at Harvard Square. It’s not the quality of people that come through, it’s the volume that’s better in New York.”

He normally sells pins at concerts and events but started selling anti-Bush pins during the Republican Convention. He sets up his table just outside the Union Square subway exit between 8:30 and 9:00 a.m. to get a head start over his competition, but his real advantage over the competition, he says, is that he’s selling a better product.

“I feel confident in my selection of pins, and I think I’ve organized my table to make it look nice, but it is competitive. New Yorkers are selective, and I think that works in my favor. They may start looking at another table, but they stop at mine when they see my selection.”

While there’s money to be made bashing Bush, some have found that boosting him is lucrative as well.

Elizabeth Cochran, 31, an aspiring fashion designer, had a promising career working at Kate Spade, but after discovering her inner-conservative, she quit her job in June to sell her pro-Bush T-shirts and attire (available atiheartgwb.com).

While she won’t disclose her profits from the venture, she estimates she has sold approximately 2,500 items, and believes she’s generated about $80,000 in sales.

“I am making enough to pursue this full-time for a few months, but I’ll have to go back to working for someone in the future.”