Kids Thermos Button Visor

Finally got fed up with the water bottle lid popping open in the backpack on the way to school, so made this visor over the button to prevent any accidental leaks. This is for the thermos bottle below…https://www.amazon.com/THERMOS-FUNTAINER-Stainless-Vacuum-Insulated/dp/B00DAPQV0K/ref=asc_df_B00DAPQV0K?tag=bingshoppinga-20&linkCode=df0&hvadid=80195681205654&hvnetw=o&hvqmt=e&hvbmt=be&hvdev=c&hvlocint=&hvlocphy=&hvtargid=pla-4583795269562451&th=1