Telltales DIY

On sailing dinghy's we used to make a small hole with a hot needle then thread a length of wool through with a knot on ether side of the sail.
Pete
 
You have already been told the easiest method.

However, if you are reluctant to put holes in your sail or you are not sure about the correct position, there is another method.
Buy a short length of self-adhesive vinyl, the peel-back type that is used for making boat names or signs on shop windows.
Cut discs, triangles, or whatever shape you prefer, and place them on the sail where you think they ought to go.
Tie a knot on the end of the wool or ribbon that you are going to use.
Peel off the backing on the vinyl and press it down well, trapping the knot between the vinyl and the sail.
Repeat as necessary.
 
Wool's my favourite- try get pure wool- lanolin waterproofs it somewhat, and the wet wool won't stick to the sail like wet spinaker-cloth does. FWIW, small helicopters use a wool-o-meter to check their airflow for the same reason, and gliders use wool because it's cheap and durable and non-stick, too!
 
[ QUOTE ]
You have already been told the easiest method.

However, if you are reluctant to put holes in your sail or you are not sure about the correct position, there is another method.
Buy a short length of self-adhesive vinyl, the peel-back type that is used for making boat names or signs on shop windows.
Cut discs, triangles, or whatever shape you prefer, and place them on the sail where you think they ought to go.
Tie a knot on the end of the wool or ribbon that you are going to use.
Peel off the backing on the vinyl and press it down well, trapping the knot between the vinyl and the sail.
Repeat as necessary.

[/ QUOTE ]

Only change to this we do is with needle pierce centre of self-adhesive disc and pass wool thread through, knot in end to stop it pulling through. This way the wool can fly in all directions without bias.
 
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