Think outside the cube! Make ice cubes without ice trays...

You will find yourself in certain situations where you have a need for a particular item that you don't necessarily have in your possession at the moment.  In those instances, you need to improvise.  Now some people are amazing at improvising and others....eh, not so much.  Well, that's one good reason to have the internet handy!  If you have a problem, there's somebody out there somewhere that has a solution!

I needed ice cubes one day but no ice trays!  So I improvised by using a miniature muffin tin ---  worked great!