All you need is some glass baubles with removable tops, these came from Lincraft via a friend
Pop in an old tape measure,
or make some tiny knitting needles by pulling the ends off and old pair, chopping them shorter and glueing the ends back on.
Now what will I do with the remaining empty bauble? If only I could crochet?
(and for far far better executed ideas - go and visit my crafting hero )