Some substitutes for rolling paper include corn husks, pipes and vaporizers. Although receipts, notebook pages and just about any thin sheet of paper can be used to roll tobacco or other substances, they are not recommended, as the paper processing they undergo can add toxic chemicals.
If no rolling papers are available for making cigarettes, pipes and other reusable smoking receptacles are to be favored over using paper not intended for rolling. Receipts in particular, although very thin and about the same size as a typical rolling paper, often contain BPA, a carcinogen.
Corn husks are a natural alternative to rolling papers. The husks are soaked in water, dried, then cut into rectangles to make small papery sheets appropriate for smoking.