Just as there's a yarn for every occasion, there's a KNOT for every occasion. The Fisherman's Knot is quite possibly the best one I know for keeping two ends of yarn together - and it does so without creating a huge, wonky protrusion in your fabric.
by AdtCreativity
by oana's crochet channel
by ArtParadise 1214
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by sb crafts
by DarVish Arts
by How to draw Cute