Deer provided many products for Native Americans. Meat and marrow taken from the bones were important food sources. Deer hides, after being tanned in a solution including deer brains, were cut and sewn together with deer bone needles and deer sinew thread for clothing. Sinews could also be woven into fish nets and used to lash together the poles of a lean-to. Deer bones and antlers could be made into fishing hooks, ornaments, and tools for scraping hides and chipping flint. Deer antlers boiled in water produced glue. Deer hide stretched over a section of hollow log made a drum.