I used to heat up a very small amount of 93% isopropyl alcohol in my resined-up pipe, seal it with my fingers, shake it around, then pour it off into some mullein/spearmint. A couple minutes in a warmed (but off) oven and I would have a dry, sticky smoking mixture that got me higher than regular weed would.
I would also use this method on my vaporizer stem/bowl to extract that golden goodness that builds up.
I don't recommend attempting this as fire/ovens and 93% IPA do not mix.
You could get burned or start a fire. Also, pressure builds up in the pipe as the IPA is heated. Getting sprayed with hot sticky resin is not fun, and it doesn't clean up well.