This is how to make an UL/L (Ultra Light/Light) bobber for ice fishing.
bright Krylon paint
1/4 oz lead weight
Pocket knife/ multi tool
Step 1: Floatation
Bore a hole in the cork and push the chopstick through with the thick end ^up^
Step 2: Stabilization
Now thin the bottom end of your bobber and glue your 1/4oz lead weight to the thinned out part.
Step 3: Color
paint the thick end (the top) a bright color Using Krylon outdoor Paint
Step 4: Bore Out Holes
Bore a hole in the top and botton(use stir sticks, wire, and hot glue too support the bottom of the float)
Step 5: Your Done!!!!!
It works too!! Thread your line through the two holes and use it as an adjustable depth bobber.