Yes, you can use the Store for fundraising. For example, if your club sells a variety of apples for your fundraiser, you can create the item in your Store, using Options and Add-ons to offer the flavors that you sell and collect the information that you need. Here is an example:

https://bh.boosterhub.com/store/1870/10940

Also, the Webmaster has a QR code generator for you in the top right of every webpage, including each item in the Store.