get a small plate or bowl and set it on top of an ac adapter with the piece inside, check it every hour turning it, could take a day or 2 or maybe 3, taste is "not bad"
if there is sunlight, set up a magnifying glass to point at the bud, directing the sunlight into it, make sure the circle of light from the magnifying glass is rather large so it just heats it up and doesn't burn it, this could take all day or maybe 2 days and will taste "not bad" imho
set your oven to 200 degrees, place it in there on a plate or something, check it every 10 minutes turning it, this will taste "crappy"