So, years ago I bought some needle tubes from a company called Grays of Kilsyth - some of which i still have so thought I would put them to good use.
For those who haven't seen them they come lined and in two diameters - 1.5mm or 1.8mm - so are very slim .
I have the 1.5mm ones in a variety of lengths.
Though I would try tying a wee sparkler tube for some end of season fry action....
The total length is about an inch and the wee fish skull fits nicely
