Here is a roller handle I got today for 25 cents at a thrift store. Why? Because I have been trying to get a fiberglass mat roller and I can't. I could have one special ordered but it would not be here for a week or more. I need to do the glass SOON. I can travel to the Toronto area (2 hours away) and get one, but that's not exactly economical ($40-50 in gas on top of $20 for the roller). I have to make do and improvise - I'm using washers to make the "fins".
Had to pack it in for the night and I was short of washers. I need to dig up more someplace tomorrow. I'll put a picture of my makeshift tool up when it is finished. And if you think that's crazy - you should see my other improvisations.