Here is a link to the Angel policy, which applies to demos and non-demos alike.
http://www.stampinup.com/us/enu/5293.asp You can always seek advise from Stampin' Up! directly at 1-800-STAMPUP even if you are not a demo.
Each item, no matter how many, must be stamped with an Angel policy stamp. For items that are too small, you can stamp the Angel stamp on a small tag or on a label affixed to a small baggie. I'm 99.999% positive on this but I encourage you to check with SU!.
HTH,