How To Build A Sand Sifter
Purchase a Flour Sifter from your local grocery story.  Preferrably a 4 cup model.
Remove the whirlygig and screen that comes with the sifter.
Parts List

1) 4 Cup Flour Sifter
2) Plumbers Solder w/ flux
3) Propane Torch
4) Metal Mesh 1/2" X 1/2"
This is the Bottom of the completed sifter
This a top view of the completed sifter
Cut the metal mesh into a 6" circle.
Form it around a 1lb coffee can.
Fit it into the bottom of the sifter. 
( Spread the ends of the mesh out a little
   to provide a tighter fit. )
Use flux on the areas to be soldered.
Using the torch, solder the ends of the mesh to the sifter.
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