Print 2 copies of the file, use whatever you want for the "Netting" (I used an old dryer sheet, worked great) requires a stick or dowel ~4mm to use as a handle.
Materials and Assembly:
-Net Frame piece x2
-Netting Material (I just used an old dryer sheet, you could use window screen, or whatever you like - I'm not your mom!)
-Stick or Dowel for handle (I made this for some 4mm dowels about 30cm long)

Place your netting material between the two frame pieces and snap them together, then trim excess from outside of frame if desired.
Sand or cut the handle to fit snugly in the hole, and insert (I recommend a few drops of glue to hold the handle in place).
Enjoy some of natures little tic-tacs! (JOKING! Do not eat raw tadpoles please!)