So I went to work, and 10 minutes and a sandwich later, I have a saw!
It's not the best, but what do you want for a recycled clingwrap dispenser!
it will cut plastic quite well, and probably thin peices of wood. I would assume if you used it too much the blade will get warm and melt the glue, but I have not tried it that much.
Things you will need:
> Clingwrap dispenser (mainly the blade and the cardboard tube inside
> Pliers or something to manipulate the paperclips.
> scissors (I only used them to poke holes in the tube)
Step 1: Removing the blade and prepping the tube
We also need to put holes in the tube, try and align these holes with holes on the blade, make sure the holes go through the other side of the tube too.
Flatten two paperclips, these will hold the blade.
Step 2: Preparing the blade assembly
Insert one end of the paperclip into a hole on the blade that aligns with a hole on the tube you made before. do the same at the other end of the blade.
you could probably add more that 2 paper clips with more holes down the tube and blade, it may make it more stable, but I settled for 2.
When the paperclip is through the blade, squash it with the pliars so it doesn't wobble around.
Step 3: Fitting blade
Pull with the pliars to pull the blade to the tube, bend the paperclips so they have a good grip.
put hotglue eitherside of the blade where the paperclip is so the blade stays pointing up from the tube.
Step 4: Keeping the blade straight
pull the blade firmly to keep it straight, while pulling, add glue down either side and hold it till it had cooled enought to hold it in place.
add some glue to the places where you bend the paperclips round so they don't come loose (I forgot to get pictures of that part )