List something that you invented or you think should be invented.
I'll start.
One way glass - only one side is solid.
This is glass that a fly will bounce off if it's trying to get into your house.
But it can fly straight through and back outside if its already in your house.
Take extra care to fit the pane the right way round.
I'll start.
One way glass - only one side is solid.
This is glass that a fly will bounce off if it's trying to get into your house.
But it can fly straight through and back outside if its already in your house.
Take extra care to fit the pane the right way round.