Gift Card Stock Surprise Audits

I am wondering how others handle surprise audits of their gift card stock.  I understand that we want to do surprise audits as we would with cash - do you use a specific form to perform these counts?  We currently have a cash audit form for teller drawer/vault surprise cash counts, but that won't work for gift card stock.  If you have a sample program/log/form, I would appreciate if you'd be willing to share it. Thanks!