I find the crochet hyperbolic sculpture great! :)
By the way, I have presented ‘hyperbolic stuff’ before ;-)
Links:
Crochet Hyperbolic Sculpture (Hyperbolic Sculpture: Hyperbolic Freeform Crochet Sculpture)
via: Learn Freeform Crochet: 15 Free Tutorials to Get You Started
via: international freeform forum – ifff — Websites for FF
Here at unikatissima:
Beaded Hyperbolic Planes
TED Talk: Nature, Crochet and Geometry
Crochet Ruffle Ring