I used to use fishing line (I fish too), but it is a pain to tie knots with. Now I use floral wire (metal with green lacquer); two twists will secure the wire.
__________________ Kim (Fair Orchids)
Founder of SPCOP (Society to Prevention of Cruelty to Orchid People), with the goal of barring the taxonomists from tinkering with established genera!
I am neither a 'lumper' nor a 'splitter', but I refuse to re-write millions of labels.