More than $100,000 has been raised in less than a week through the sale of OskarStrong T-shirts made in support of Philadelphia Flyers forward Oskar Lindblom.

The Flyers announced Dec. 13 that the 23-year-old forward had been diagnosed with Ewing's sarcoma, a form of bone cancer.

The shirts are made by Biscuit Tees, a Philadelphia-area company co-owned by Kim Parent, daughter of Hockey Hall of Fame goalie Bernie Parent. They come in long- and short-sleeve, and are available for men, women and children.

Tweet from @BiscuitTees: We delivered our shirts to the team for them to wear tonight:) Get yours at https://t.co/4IftTyFnWw 100% of all proceeds go to #hockeyfightscancer. So far we have raised $47,000 to donate!! Keep it going! #OskarStrong 💜 @phil_flyers pic.twitter.com/22ZTob4EmP

Kim Parent was one of the countless hockey fans around the world shocked and saddened by the news of Lindblom's diagnosis, and wanted to design a shirt to honor Lindblom, with any money raised going to charity.

Flyers equipment manager Derek Settlemyre reached out with a request from the players that Biscuit Tees design a shirt for them to wear to honor Lindblom.

The result was the purple and black OskarStrong shirt. Since posting the shirt on their website for pre-order, more than $100,000 has been raised for Hockey Fights Cancer.

"Our goal was to donate $5,000," Parent said. "We were hoping to raise $5,000; we would have been thrilled with that. We surpassed that in the first day."

The Flyers received the shirts Thursday, prior to their 6-1 win against the Buffalo Sabres, and will wear them under their jerseys for every game the rest of the season.

"The first day I think within 18 hours we raised $23,000," Parent said. "And then when [NBCSN rinkside reporter] Taryn Hatcher held up the shirt during the last game (Thursday) and mentioned how the players were wearing it and where to find it, within two hours we raised $24,000.

Tweet from @BiscuitTees: The boys look great in our tees!! Let���s keep raising money and fighting with Oskar!! We have hit $50,000 to donate to #hockeyfightscancer @NHLFlyers #OskarStrong https://t.co/4IftTyFnWw pic.twitter.com/QAJLhNF2Yr

"People have reached out and are buying shirts from Australia, Germany, Italy, all over the United States and Canada. We're getting orders from all over the world. That's how supportive everyone is for Oskar and the cause and it's heartwarming."

It's not just Flyers fans and players who want OskarStrong shirts.

New York Rangers forward Mika Zibanejad, like Lindblom a native of Sweden, requested six OskarStrong shirts for himself and his teammates to wear when the Rangers play the Flyers at Wells Fargo Center on Monday (7 p.m. ET; NBCSN, NBCSP, MSG 2, NHL.TV). She also said the New Jersey Devils have reached out about shirts as well.

"It would be so amazing if we could have guys in every locker room showing their support for Oskar," Parent said. "I think that would be so awesome."

Parent and co-owner Jodi Smith started Biscuit Tees about a year ago. Their designs involve Philadelphia athletes and teams, with Parent doing most of the artwork on the shirts. Ten percent of every sale goes to the Ed Snider Youth Hockey Foundation. Parent and Smith handle all the orders and the shipping. She said they're trying to fill every order they can for the holiday season but are asking people to be patient.

"We have almost 3,000 orders but most orders are multiples," she said. "We have people ordering from 1-7 shirts per order, so I don't know the exact number of shirts as of now."

Lindblom, who is not expected to play for the remainder of the season, said in a recent Instagram post, "The last week has been very challenging for me, but I'm so happy for all the love and strength you all are giving me on this journey. The support has been unreal and we are so thankful for everything - big thanks to all of you, it means a lot."

Instagram from @oskarlindblom: The last week has been very challenging for me, but I'm so happy for all the love and strength you all are giving me on this journey. The support has been unreal and we are so thankful for everything - big thanks to all of you, it means a lot