Cat-proof Arcoroc Arc Jug lid

We have two Arcoroc Arc Jugs where we keep boiled water for daily drinking.
Our cat naturally thinks as he is a part of our family so he is also entitled to drink from them... . First we were covering Jugs with whatever came by hand, but finally I have got a few minutes to make these lids.

To check if it fits your particular jug - the internal diameter of the base of the lid is 104mm the height of the lid at the highest point is 27.5mm

If you found my design useful or inspiring and would