# Woolly Thoughts Afghans

We designed our first afghan in 1996. It came about shortly after the publication of our Woolly Thoughts book when we were contacted by Brown Sheep, a large American yarn company. They asked us if we would design an afghan for them. We agreed but actually had no idea what it was they were wanting. …

# Borromean Baubles

These simple mathematical baubles can be made in lots of different ways and either hung as a decoration, or used to hold a small gift. The Borromeo family originated in Rome – that’s where the Rome bit of their name came from. In the twelfth century they set up a bank in Milan and became …

# Hyperbolic Barbie

Hyperbolic crochet has become very popular in recent years. It has been used world-wide in various coral reef projects. The world expert in the mathematics of this art is Daina Taimina. Our latest mathematical pattern for Barbie and friends is Hyperbolic Barbie. Hyperbolic geometry is quite complicated but you don’t need to understand it to …

# Square Puzzle

The challenge is to turn a square of fabric into a jacket without cutting off any pieces or adding anything on.

# Sum Wear

You could be forgiven for thinking I am beginning to lose the plot. My latest design is for Barbie! This is not just any Barbie. This is Fibonacci Barbie. This is a project that has been languishing for more than 20 years. I started to make some mathematically-inspired clothes for a teddy bear, which I …

# Flatland Lock

About ten years ago we came across a puzzle called Bank Raid, in Leonardo’s Mirror & Other Puzzles by Ivan Moscovich. The puzzle itself was inspired by the 2- dimensional world of Flatland: A Romance of Many Dimensions by Edwin Abbott Abbott. At the time we made a crochet blanket. Obviously it was not possible …

# Squiggly Things

A few months ago I made some ‘Squiggly Things’. They don’t have a proper name but they are a form of hyperbolic crochet and great fun to make. They are nice toys for children or for stress-relief. They are very tactile and can be twisted and turned without getting damaged. This week someone asked me …

# Ins and Outs of Flexagons

I have always been fascinated by flexagons and have made several over the years, some more successful than others. My first crochet hexaflexagon was about twenty years ago and, amazingly, it is still surviving. It isn’t the most comfortable cushion in the world but it is great fun. I can absolutely predict what will happen …