This is not what I am working on now but this is something I used to use. Bowhunters devise all sorts of tools and methods for themselves to accomplish tasks. I have. Here is what I used to do.
I like to resharpen and reuse my broadhead blades so I created the poor mans sharpening thread. I am a staff shooter and on the hunting pro staff for Ace hardware stores (kidding) and your local hardware store has everything I needed but Im working on refining a method for everyman.
I used a Window scraper. For those fixed blade, two bladed broadheads, you can use a office paper, binder clip. You can find these on your co-workers desk when they are out to lunch or at a meeting. Most likely the clip is being used for some unimportant papers anyway.
These two holders can then be used with your favorite sharpening stones. If you don't have any sharpening stones, hardware stores carry an assortment of wet/dry sandpapers that work perfectly. 400, 600 and 1000 grit works great. For best results, tape the sandpaper to a piece of sheet glass. If you dont have any glass, you can get some from old storm windows. You can get old storm windows from your neighbor's house when he is at work. To check progress and to better see knicks, dents and dings in the edge, use a sharpies marker to coat the blade edge. Here is a Rage Blade
Once you get the blades as sharp as you can, your still not done, Now you're going to want to strop or hone the blades to a razor's edge. Barbers use a leather strop to get their razors shaving sharp. If you dont have any leather, never fear. You already have a suitable substitute in your kitchen. open up an old cereal box and lay it flat. I prefer Frankenberry and Count Chocula but I've heard good things about Wheaties and corn flakes boxes. Next, coat the carboard with buffing compund (also sold at Ace)Use the stick to draw all over the cardboard.
I like the white compound for broadhead blades. Just draw on the box like your using a big crayon with the polishing compound (powdered form) suspended in the wax.
Then strop you blades backwards across the cardboard making sure to give both sides the same number of strokes.
Should you be feeling ambitious, you can make a leather strop by gluing belting leather to a wooden paddle. Here is one I made yesterday.
I rubbed one side with white rouge (fine) and emery cake (course)
Then I set about resharpening the blades from the Rage Broadhead I shot the doe with on opening day.
There are other bowhunter inspired methods. I hoped to make it easier (and less expensive)