Ceramic Jug With Holes In The Opening; What Is This Used For?

“A “thingy” to help hold flowers straight or in the design you desire.” – Reddit / Attercrop
This Rainbow Effect?

“A rainbow is a rainbow. The cause is refraction/dispersion of light due to water in the air. Looks like it’s raining over there. The shape is just a matter of angles and height.” – Reddit
I Found This Hanging From The Basement Rafters Of My 100 Year Old House. It Appears To Be Two Marbles Or Something Similar In A Hanger Of Some Sort. Any One Have A Clue What This Could Be?

“It’s a razor blade sharpener. A 1930s salesman’s special and it doesn’t even sharpen the blades just realigns the edge and gets you a few more shaves.” – Reddit / Urithiru