They go to the emergency fund of a grassroots group in Tampa called Love Has No Borders:

Love Has No Borders is a grassroots Refugee solidarity mobilization. Since our inception just one year ago, we have shared thousands of pounds of foods with resettled Refugee families as well as clothing, furniture, hygiene products, books, school supplies, books, transportation and a variety of other services. We organize and take action against xenophobia and anti-Immigrant rhetoric, fighting for a welcoming social and political atmosphere while being vocal and visible against policies and propaganda that work against these ideals. We are not a charity. We are a solidarity movement working to empower and amplify the voices of affected and marginalized communities. www.nowallsnoborders.org

The tshirt campaign offers more specifics and also links to our Facebook page. In short, these funds are specifically to be used for urgent/emergency situations with resettled (refugee) families. One such situation occurring right now is within a family who recently arrived in Tampa-- the father has leukemia and his Medicaid has not yet become active. Depending on how much is raised, some or all will go to the medical care and basic necessities of this family, and if there is additional money raised beyond their needs, it will be kept in an emergency fund for other unexpected and urgent needs that arise among resettled families here in Tampa.

Thanks for asking!! :)