This nifty weaving tool is a great help for fixing threading errors or broken warp ends. They have been handmade in North East Victoria from reclaimed or repurposed timber. Each one will be unique and made from various timbers. Measuring approximately 8cm wide and 9cm high they have been carefully sanded, smoothed and oiled with vegetable oil. 
Keep one handy by your loom for the next time you need to isolate a single thread.