Am I wrong??

For the past nearly 2 decades I have helped put on a Christmas event in our community. Last year we added a really special event that involved a bunch of banners and pictures with quotes. Myself and my husband designed the banners and through fundraising efforts our committee purchased them. Weeks of work went into these. Blood sweat and literal tears mostly from me went into this. Now there is a woman wanting to do something similar in her community on a smaller scale and she wants me to just hand over the files we created so she can print her own… and I’m not okay with that…. Am I wrong to kick back against that?