There are not many knitting and crochet techniques I have never touched. Filet crochet was one of those. Until I made this baby duck washcloth. You can find the pattern here, it's a free one.
Actually, it's not complicated at all. I was confused with the solid block and open mesh stitches. But it's only a combination of "chain" and "double crochet". Then all you need to be able to do is read a chart.
My washcloth is not perfectly even but I'll do better next time!