Hello. I just finished up a bottle Siracha (my fav condiment 
). I usually tuck them away and eventually use for a glue bottle when I need one as they are clear, made of the right thickness of durable plastic, and have the perfect spout. I’ll bring this one in, but we can probably use a few spares if anyone else has one or two they want to donate to the cause.
I am sure they would also work for all sorts of thinks like acrylic paints and who know what else.