Things that you'll need:
Wood - probably a hardwood soft enough to carve, avoid woods with strong tastes.
Carving tool - I used a chisel
Sharpening supplies - I used a sand paper system
Hand drill and bits
Sand paper - coarse medium and fine grits (I used 80, 150, 800)
Food safe finish - I used a mineral oil based finish
Step 1: Trace & cut spatula blanks from plank
Step 2: Carving with chisel
Once it is carved you can use a drill to make it a strainer, or to add a lanyard. A strainer is seen in Step 5.
Disclaimer: Chisel are sharp! or at least they should be. Use with caution.