Thanks for sharing this Pandora.
I have not tried that olive oil method before, but will surely give it a go. Another method, more quick and dirty, is to run your resinous fingers through your hair.
Isopropyl and salt is a definite favorite for pipe cleaning in my end.
Also handy for pipe cleaning ime has been grass blades. Take a handful of grass blades and twist/pinch them together and rub it along the inside of your bowl. Apply a little heat beforehand if the resin is really caked on there. A few minutes later and the inside of your bowl looks like glass again.
The inner soul is full of joy. Reveal my secrets and sew me whole. With each day, "I" heeds your call.
You may not care the slightest and may not be the brightest, but from here "I" sees you're mighty for you created it all.
And the jumbling sea rose above the wall.
Through this chaos comes the order you enthrall.