I had quite a few more, and they were very beautiful assortment, but alas, they came to an untimely demise after a particularly lively game of hide & seek in our house (i'm embarrassed to say that it was my fault, and not my 5 year old son's). They are all stuffed tight with felted wool scraps. I read somewhere that wool makes a great stuffing for pincushions, because it is moisture wicking and won't cause you pins to rust, like some materials can. Sounds good to me!
Ready for the tutorial, which i'm sure you've figured out by now? Take wool scraps, tightly stuff them in a shaker, place a circle of wool the size of the inside of the cap on top, and screw the cap on. Done!
My husband said "you can only put so many pins in, though" (always the pessimist, tsk, tsk, tsk). True, but with all the shakers I have, they have holes big enough to hold at least 2 pins per hole. I like the idea of having the amount of pins per hole on the shaker, because you will know if you are missing a pin! Though i've never lost one (knocking on wood), my son is always worried i'm going to lose one one day & he'll step on it. If you always keep one per hole, they are always accounted for.
