If you select WePay as the donation processor on your fundraiser, you will have the option to receive your donations by check rather than linking to a bank account.
When you receive your first donation through WePay, you will receive a confirmation email. Once you have confirmed your account, you'll be taken to your WePay homepage.
To specify checks as your preferred withdrawal method, you'll want to click on the Settings gear icon next to your account balance and then go to the Withdrawals section. Here, you will be able to enter the payee and address information for a disbursement via check.
Here's a video to help: https://vimeo.com/190124839/18102ae8b5