Replying to Calling all stoners! help me out

I smoke pretty rarely and don't really know anything about stuff like this, so that's why I'm asking for help. But to make a long story short, I have a pair of cheap wayfarer sunglasses which are covered in kief, and I'm trying to scrape it all off so I can smoke it. Thing is, I'm having trouble getting the bulk of it out of the nooks and crannies (around the hinges, on the outsides of the lenses, and in the arch over the nose), and a lot is getting caked up and sticking to the plastic frames and is hard to get off. So I'm asking for advice on how to get all of it out. Are there any ways I can dissolve it off, or any tools which are particularly good at getting it off? I've never really handled keif before so you'll have to bear with my lack of knowledge. Thanks in advance for any tips you provide.