No but I can tell you an even better way of achieving a similar end. Don’t tell anyone else though. ~shh
Get hold of some peacock eye feathers and some thicker float rubbers. Take the herl off the feathers and rub down with a piece of fine sand paper. Cut into lengths and put a float rubber on each end. Brilliant for fishing for lumps down the side if they go into the reeds the float just pings off and you can often collect them at the end of the match. Nothing more natural to a fish than a bit of reed or feather so you can leave them white although they occasionally be sucked at by carp or/and paint some brown for the winter or green for the summer.