A quilter I know asked me about making a thing to put cutt-off threads in until she dumps in the trash at the end of her sewing session. I found one on the internet and got the dimensions of 2 1/2" in diameter X 2 1/4" tall. From the picture it looked like the walls were about 1/2" thick - short and stout so it would not move around with a hole small and deep enough you could push down a scrap of thread and it would not escape. So here is the one I made of Bradford Pear with a little embellishment from a Sorby spiraling wheel. Got to love that spiraling or texturing on BP.
Maybe you know a quilter you could make one for.