so i have smoked hash oil off tin foil when younger, but did light the shiny side first to burn off that shine which smokes. then put hash oil on non shiny side and smoke.
But do not any more because it does seem unhealthy i have heard a lot of the hype, and it is easier to just use a hot knife.
As for smoking DMT i always use a water bong, always works a charm for every one, either pack a cone with Dream Time blend, or fill cone with dried mint leaves and place crystal on top,
Smoke SLOW.. and HOT rip it. close eyes. HOLD deep for the MaGic ten seconds, then blow out opening eyes....rowwwwwwww